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Answer the following medical question with one of the provided options: | Q:A 53-year-old woman presents to her primary care physician with joint pain. She reports a 6-month history of progressive pain in her hands that is worse around her knuckles. The pain is symmetric bilaterally and seems to improve after she starts working in the morning at her job in a local grocery store. She has also... | E: HLA-DR4 |
Answer the following medical question with one of the provided options: | Q:A 3100-g (6.9-lb) male newborn is brought to the emergency department by his mother because of fever and irritability. The newborn was delivered at home 15 hours ago. He was born at 39 weeks' gestation. The mother's last prenatal visit was at the beginning of the first trimester. She received all standard immunizatio... | E: Streptococcus agalactiae |
Answer the following medical question with one of the provided options: | Q:A 10-year-old boy is brought in by his parents with increasing breathlessness. He was diagnosed with asthma about 2 years ago and has been on treatment since then. He was initially observed to have breathlessness, cough and chest tightness 2 or 3 times a week. He would wake up once or twice a month in the nighttime w... | C: 65% |
Answer the following medical question with one of the provided options: | Q:A 17-year-old girl is brought to the physician by her mother because she has not had her menstrual period yet. At birth, she had ambiguous genitalia. The mother reports that during the pregnancy she had noticed abnormal hair growth on her chin. A year ago, the girl broke her distal radius after a minor trauma. She is... | A: Aromatase deficiency |
Answer the following medical question with one of the provided options: | Q:A 56-year-old woman is referred to a plastic surgeon for breast reconstruction approximately 18 months after undergoing right modified radical mastectomy for breast cancer. Physical exam demonstrates atrophy of the lower lateral pectoralis major muscle. Damage to which of the following nerves during mastectomy is the... | C: Medial pectoral |
Answer the following medical question with one of the provided options: | Q:A 4-year-old boy is brought to the physician in December for episodic shortness of breath and a nonproductive cough for 3 months. These episodes frequently occur before sleeping, and he occasionally wakes up because of difficulty breathing. His mother also reports that he became short of breath while playing with his... | B: Asthma |
Answer the following medical question with one of the provided options: | Q:An investigator is studying membranous transport proteins in striated muscle fibers of an experimental animal. An electrode is inserted into the gluteus maximus muscle and a low voltage current is applied. In response to this, calcium is released from the sarcoplasmic reticulum of the muscle fibers and binds to tropo... | C: Uptake of fructose by small intestinal enterocytes |
Answer the following medical question with one of the provided options: | Q:A 5-year-old boy is brought to the emergency room lapsing in and out of consciousness. The mother reports that 30 minutes ago, the young boy was found exiting the garage severely confused. A container of freshly spilled antifreeze was found on the garage floor. The next appropriate step would be to administer:? {'A':... | E: Fomepizole |
Answer the following medical question with one of the provided options: | Q:A 39-year-old man comes to the emergency department because of a 2-day history of fever, chills, dyspnea, and a non-bloody productive cough. He was diagnosed with HIV infection 4 years ago and has been on highly active antiretroviral therapy since then. His temperature is 38.8°C (101.8°F). Examination shows crackles ... | D: Polysaccharide capsule |
Answer the following medical question with one of the provided options: | Q:A 38-year-old woman, gravida 3, para 2, at 12 weeks' gestation comes to her obstetrician for a prenatal visit. Screening tests in the first trimester showed a decreased level of pregnancy-associated plasma protein and an increased level of β-hCG. A genetic disorder is suspected. Which of the following results from an... | B: Additional chromosome in placental tissue |
Answer the following medical question with one of the provided options: | Q:A 82-year-old woman is brought to the emergency department from a retirement community after she was found down during the evening. On presentation, she complains that she experienced several hours of nausea, vomiting, crampy abdominal pain, and diarrhea prior to blacking out. She said that she cannot recall any fact... | C: Synthesis of small nucleolar RNA |
Answer the following medical question with one of the provided options: | Q:A 6-month-old boy presents with decreased growth, pigmented retinopathy, hemolytic anemia, and peripheral neuropathy. You suspect that these signs are the result of a vitamin deficiency leading to increased fatty acid oxidation. Which of the following is most likely responsible for this patient's symptoms?? {'A': 'Pe... | B: Abetalipoproteinemia |
Answer the following medical question with one of the provided options: | Q:A 2-year-old boy is brought to the emergency department after his mother noticed maroon-colored stools in his diaper. He has not had any diarrhea or vomiting. The prenatal and birth histories are unremarkable, and he has had no recent trauma. He tolerates solid foods well. The vital signs include: temperature 37.0℃ (... | D: Technetium-99m pertechnetate scan |
Answer the following medical question with one of the provided options: | Q:A 14-year-old boy presents to his pediatrician with weakness and frequent episodes of dizziness. He had chronic mucocutaneous candidiasis when he was 4 years old and was diagnosed with autoimmune hypoparathyroidism at age 8. On physical examination, his blood pressure is 118/70 mm Hg in the supine position and 96/64 ... | B: Negative selection |
Answer the following medical question with one of the provided options: | Q:A 71-year old man is brought to the emergency department because of progressively worsening shortness of breath and fatigue for 3 days. During the last month, he has also noticed dark colored urine. He had an upper respiratory infection 6 weeks ago. He underwent a cholecystectomy at the age of 30 years. He has hypert... | D: Aortic valve replacement |
Answer the following medical question with one of the provided options: | Q:A 62-year-old man with gastroesophageal reflux disease and osteoarthritis is brought to the emergency department because of a 1-hour history of severe, stabbing epigastric pain. For the last 6 months, he has had progressively worsening right knee pain, for which he takes ibuprofen several times a day. He has smoked h... | B: Left shoulder |
Answer the following medical question with one of the provided options: | Q:A 57-year-old woman comes to the physician because of a 2-week history of swelling of both her feet. It improves a little bit with elevation but is still bothersome to her because her shoes no longer fit. She has type 2 diabetes mellitus treated with metformin and linagliptin. She was diagnosed with hypertension 6 mo... | A: Addition of enalapril |
Answer the following medical question with one of the provided options: | Q:A 50-year-old woman comes to the physician for the evaluation of excessive hair growth on her chin over the past 2 weeks. She also reports progressive enlargement of her gums. Three months ago, she underwent a liver transplantation due to Wilson disease. Following the procedure, the patient was started on transplant ... | B: Cyclosporine |
Answer the following medical question with one of the provided options: | Q:A 24-year-old man presents to the clinic with the complaint of a new rash. The lesions are not bothersome, but he is worried as he has never seen anything like this on his body. Upon further questioning the patient states has been generally healthy except for a one time "horrible" flu-like episode two months ago in J... | B: Molluscum contagiosum virus |
Answer the following medical question with one of the provided options: | Q:An HIV-positive 48-year-old man comes to the emergency department because of a 3-month history of recurrent, painful mouth ulcers. This time, the pain is so severe that the patient cannot eat. He has a history of a seizure disorder but currently does not take any medications. He appears very ill. His temperature is 3... | C: Cidofovir |
Answer the following medical question with one of the provided options: | Q:A 28-year-old woman presents to an outpatient clinic for a routine gynecologic examination. She is concerned about some swelling on the right side of her vagina. She senses that the right side is larger than the left and complains that sometimes that area itches and there is a dull ache. She denies any recent travel ... | B: Bartholin duct cyst |
Answer the following medical question with one of the provided options: | Q:A 64-year-old woman presents to the physician’s office to find out the results of her recent abdominal CT. She had been complaining of fatigue, weight loss, and jaundice for 6 months prior to seeing the physician. The patient has a significant medical history of hypothyroidism, generalized anxiety disorder, and hyper... | A: Set aside an appropriate amount of time in your schedule, and ensure you will not have any interruptions as you explain the bad news to the patient |
Answer the following medical question with one of the provided options: | Q:An investigator studying DNA replication in Campylobacter jejuni inoculates a strain of this organism into a growth medium that contains radiolabeled thymine. After 2 hours, the rate of incorporation of radiolabeled thymine is measured as a proxy for the rate of DNA replication. The cells are then collected by centri... | E: Primase |
Answer the following medical question with one of the provided options: | Q:A 22-year-old woman presents to the emergency department feeling lightheaded and states that her heart is racing. She does not have a history of any chronic medical conditions. She is a college sophomore and plays club volleyball. Although she feels stressed about her upcoming final exams next week, she limits her ca... | B: Verapamil |
Answer the following medical question with one of the provided options: | Q:A 13-year-old boy is brought to the physician because of a 4-month history of worsening dizziness, nausea, and feeling clumsy. An MRI of the brain shows a well-demarcated, 4-cm cystic mass in the posterior fossa. The patient undergoes complete surgical resection of the mass. Pathologic examination of the surgical spe... | C: Pilocytic astrocytoma |
Answer the following medical question with one of the provided options: | Q:A 45-year-old man comes to the physician for a 2-day history of headache and breathlessness on exertion. During the same period, he has vomited twice and not passed urine. He also reports pain and stiffness in his fingers that has worsened progressively over the past 2 years. He has no history of serious illness and ... | B: Decreased serum haptoglobin levels |
Answer the following medical question with one of the provided options: | Q:A 62-year-old woman presents to the emergency department complaining of fever, worsening fatigue, and muscle weakness for the previous 48 hours. The patient describes her muscle weakness as symmetric and worse in the upper limbs. Her past medical history is significant for long-standing diabetes type 2 complicated by... | A: Administer IV calcium gluconate |
Answer the following medical question with one of the provided options: | Q:A 71-year-old man with recently diagnosed small-cell lung cancer sees his physician because of increasing weakness over the past 3 months. He is unable to climb stairs or comb his hair. His weakness is worse after inactivity and improves with exercise. He is a former smoker with a 30-pack-year history. He is currentl... | B: Autoantibody-impaired acetylcholine release from nerve terminals |
Answer the following medical question with one of the provided options: | Q:A 68-year-old man is brought to the emergency department for increasing colicky lower abdominal pain and distention for 4 days. He has nausea. He has not passed flatus for the past 2 days. His last bowel movement was 4 days ago. He has hypertension, type 2 diabetes mellitus, and left hemiplegia due to a cerebral infa... | B: Endoscopic detorsion |
Answer the following medical question with one of the provided options: | Q:A 27-year-old woman, gravida 2, para 1, at 38 weeks' gestation comes to the emergency department in active labor. She received all of her prenatal care for this pregnancy. Pregnancy and delivery of her first child were uncomplicated. The patient's blood type is Rh-negative. Four hours after arrival, a healthy 3650-g ... | B: Perform rosette test |
Answer the following medical question with one of the provided options: | Q:A 5-year-old boy is brought to the emergency department because of a generalized pruritic rash for 14 hours. Five days ago, he had pink eyes that resolved spontaneously. He has acute lymphoblastic leukemia. He has received 3 cycles of chemotherapy with vincristine, asparaginase, dexamethasone, and doxorubicin. His la... | D: Acyclovir administration |
Answer the following medical question with one of the provided options: | Q:A 17-year-old adolescent male is brought to the emergency department by fire and rescue after being struck by a moving vehicle. The patient reports that he was running through his neighborhood when a car struck him while turning right on a red light. He denies any loss of consciousness. His temperature is 99.0°F (37.... | B: Focused Abdominal Sonography for Trauma (FAST) exam |
Answer the following medical question with one of the provided options: | Q:An investigator is examining tissue samples from various muscle tissue throughout the body. She notices that biopsies collected from a specific site have a high concentration of sarcoplasmic reticulum, mitochondria, and myoglobin; they also stain poorly for ATPase. Additionally, the cell surface membranes of the myoc... | B: Semispinalis muscle |
Answer the following medical question with one of the provided options: | Q:A 36-year-old woman comes to the physician for a 2-month history of urinary incontinence and a vaginal mass. She has a history of five full-term normal vaginal deliveries. She gave birth to a healthy newborn 2-months ago. Since then she has felt a sensation of vaginal fullness and a firm mass in the lower vagina. She... | B: Uterosacral ligament |
Answer the following medical question with one of the provided options: | Q:A 23-year-old woman presents to the emergency department with an acute exacerbation of her 3-month history of low back and right leg pain. She says she has had similar symptoms in the past, but this time the pain was so excruciating, it took her breath away. She describes the pain as severe, shock-like, and localized... | E: Gastrocnemius/soleus-tibial nerve |
Answer the following medical question with one of the provided options: | Q:A 36-year-old man comes to the physician because of a 2-week history of productive cough, weight loss, and intermittent fever. He recently returned from a 6-month medical deployment to Indonesia. He appears tired. Physical examination shows nontender, enlarged, palpable cervical lymph nodes. An x-ray of the chest sho... | A: Inform the local public health department of the diagnosis |
Answer the following medical question with one of the provided options: | Q:A 32-year-old African American woman presents to her family physician complaining of fevers, fatigue, weight loss, joint pains, night sweats and a rash on her face that extends over the bridge of her nose. She has also had multiple sores in her mouth over the past few weeks. She recently had a root canal procedure do... | D: Immune complex deposition and subsequent inflammation |
Answer the following medical question with one of the provided options: | Q:A 38-year-old woman comes to the physician for a follow-up examination. Two years ago, she was diagnosed with multiple sclerosis. Three weeks ago, she was admitted and treated for right lower leg weakness with high-dose methylprednisone for 5 days. She has had 4 exacerbations over the past 6 months. Current medicatio... | B: Progressive multifocal leukoencephalopathy |
Answer the following medical question with one of the provided options: | Q:A 2-day-old male newborn is brought to the emergency department by his mother because of irritability and vomiting for two hours. During this period, he has vomited bilious fluid three times. He has not yet passed stool. The mother has breastfed the newborn every two hours. He has wet two diapers during the last two ... | B: Gastrografin enema |
Answer the following medical question with one of the provided options: | Q:A 40-year-old woman comes to the physician for the evaluation of fatigue, poor appetite, and an unintentional 10-kg (22-lb) weight loss over the past 6 months. The patient also reports several episodes of nausea and two episodes of non-bloody vomiting. There is no personal or family history of serious illness. Menses... | E: Cosyntropin administration " |
Answer the following medical question with one of the provided options: | Q:A 22-year-old Caucasian male is stabbed in his left flank, injuring his left kidney. As the surgeon undertakes operative repair, she reviews relevant renal anatomy. All of the following are correct regarding the left kidney EXCEPT?? {'A': 'The left kidney has a longer renal vein than the right kidney', 'B': 'The left... | B: The left kidney has a longer renal artery than the right kidney |
Answer the following medical question with one of the provided options: | Q:An 82-year-old male with a history of congestive heart failure presented with new-onset atrial fibrillation. He was initially started on carvedilol, but he now requires an additional agent for rate control. He is started on a medicine and is warned by his physician of the following potential side effects associated w... | C: Hypokalemia |
Answer the following medical question with one of the provided options: | Q:A 25-year-old woman with a psychiatric history of bipolar disorder is brought into the emergency department by emergency medical services. The patient is unconscious, but the mother states that she walked into the patient's room with the patient lying on the floor and an empty bottle of unknown pills next to her. The... | B: Acetaminophen ingestion |
Answer the following medical question with one of the provided options: | Q:A 25-year-old woman presents into the clinic complaining of worsening malaise, hair loss, and a rash on her face. The patient states that she has been avoiding daylight because the rash becomes painful, and she has not been able to go to classes because of debilitating arthralgia in her fingers and ankles. No signifi... | E: Antinuclear antibody |
Answer the following medical question with one of the provided options: | Q:A 45-year-old woman presents to your office with a serum glucose of 250 mg/dL and you diagnose diabetes mellitus type II. You intend to prescribe the patient metformin, but you decide to order laboratory tests before proceeding. Which of the following basic metabolic panel values would serve as a contraindication to ... | E: Creatinine > 2.0 |
Answer the following medical question with one of the provided options: | Q:You are reading through a recent article that reports significant decreases in all-cause mortality for patients with malignant melanoma following treatment with a novel biological infusion. Which of the following choices refers to the probability that a study will find a statistically significant difference when one ... | C: Power |
Answer the following medical question with one of the provided options: | Q:A 17-year-old girl comes to the physician because of a 2-day history of pain in her right knee. Last week she had right wrist pain. She has no history of recent trauma. She returned from summer camp in Connecticut 2 weeks ago. She is sexually active with one male partner and uses an oral contraceptive. Her temperatur... | D: Disseminated gonococcal infection |
Answer the following medical question with one of the provided options: | Q:A 25-year-old man comes to the physician because of an 8-hour history of painful leg cramping, runny nose, chills, diarrhea, and abdominal pain. Examination shows cool, damp skin with piloerection. The pupils are 7 mm in diameter and equal in size. Deep tendon reflexes are 3+ bilaterally. The diagnosis of opioid with... | D: Long elimination half-life |
Answer the following medical question with one of the provided options: | Q:A 55-year-old man presents with intense pain in his left knee that started after returning from a camping trip 2 days ago, during which he consumed copious amounts of alcohol and red meat. He says he has had similar episodes in the past that resolved spontaneously usually over a period of about 10 days. His past medi... | B: Nonsteroidal antiinflammatory drugs |
Answer the following medical question with one of the provided options: | Q:A 9-month-old male infant is brought to his pediatrician by his mother with lethargy and decreased oral intake for one day. His mother also mentions that he did not sleep well the previous night. A review of the medical record reveals several missed appointments and that the boy was born at 36 weeks gestation via spo... | C: Noncontrast computed tomography of head |
Answer the following medical question with one of the provided options: | Q:A 21-year-old girl with a history of bipolar disorder, now in a depressive episode, presents to the emergency in distress. She reports that she wanted to "end it all" and swallowed a full bottle of acetaminophen. However, regretting what it would do to her parents, and she decided that she wants to live. She appears ... | B: Give activated charcoal and draw a serum acetaminophen level in three hours |
Answer the following medical question with one of the provided options: | Q:A 7-year-old boy presents to an urgent care clinic from his friend’s birthday party after experiencing trouble breathing. His father explains that the patient had eaten peanut butter at the party, and soon after, he developed facial flushing and began scratching his face and neck. This has never happened before but h... | A: Type I hypersensitivity reaction |
Answer the following medical question with one of the provided options: | Q:You conduct a medical research study to determine the screening efficacy of a novel serum marker for colon cancer. The study is divided into 2 subsets. In the first, there are 500 patients with colon cancer, of which 450 are found positive for the novel serum marker. In the second arm, there are 500 patients who do n... | A: 450 / (450 + 50) |
Answer the following medical question with one of the provided options: | Q:A 43-year-old man comes to the physician because of weight loss and swelling on the left side of his neck. Physical examination shows a firm, enlarged left upper cervical lymph node that is immobile. Immunohistochemical testing performed on a biopsy specimen from the lymph node stains positive for cytokeratin. Which ... | A: Skin |
Answer the following medical question with one of the provided options: | Q:A 32-year-old woman presents to the clinic with the complaint of excessive fatigue for the past few weeks. After returning home from the office, she feels too tired to climb up the stairs, comb her hair, or chew her food. She has occasionally experienced double vision. She denies any history of fever, cough, weight l... | D: Single-fiber electromyography |
Answer the following medical question with one of the provided options: | Q:A 30-month-old toddler presents with his mother to the pediatrician for a scheduled follow-up. She is concerned that his appetite has been poor since the death of his father, approximately one year ago. She denies any history of vomiting, refusal of food, diarrhea, constipation, recurrent cough and colds, recurrent w... | B: Present gender-specific weight for age between 75 and 50 percentile markers |
Answer the following medical question with one of the provided options: | Q:A 28-year-old woman presents to her primary care physician complaining of intense thirst and frequent urination for the past 2 weeks. She says that she constantly feels the urge to drink water and is also going to the bathroom to urinate frequently throughout the day and multiple times at night. She was most recently... | C: Posterior pituitary |
Answer the following medical question with one of the provided options: | Q:A 28-year-old man presents with one week of redness and discharge in his eyes, pain and swelling in his left second and third toes, and rash on the soles of his feet. He is sexually active with multiple partners and uses condoms occasionally. He denies any recent travel or illness and does not take any medications. R... | E: Nucleic acid amplification testing for Chlamydia trachomatis |
Answer the following medical question with one of the provided options: | Q:An 18-year old college freshman presents to his university clinic because he has not been feeling well for the past two weeks. He has had a persistent headache, occasional cough, and chills without rigors. The patient’s vital signs are normal and physical exam is unremarkable. His radiograph shows patchy interstitial... | E: Methylation of ribosomal binding site |
Answer the following medical question with one of the provided options: | Q:A group of researchers is studying various inhaled substances to determine their anesthetic properties. In particular, they are trying to identify an anesthetic with fast onset and quick recovery for use in emergencies. They determine the following data: Inhalational anesthetic Blood-gas partition coefficient A 0.15 ... | B: Agent A has the fastest onset of action |
Answer the following medical question with one of the provided options: | Q:A 14-year-old boy presents to the office for a checkup. He is well-nourished and meets all developmental milestones. He denies any complaints, and you offer him counseling on adolescent issues. On examination, he appears to be a normal, healthy teenager. The only significant finding is the bilateral swelling of the t... | E: Osgood-Schlatter disease |
Answer the following medical question with one of the provided options: | Q:A 23-year-old female presents to the emergency department with monocular blindness. She states that early this morning she lost her vision seemingly "out of nowhere." She denies trauma or any precipitating factors. She does state though that over the past year she has had occasional episodes of weakness and even an e... | B: Oligoclonal bands |
Answer the following medical question with one of the provided options: | Q:ََA 22-month-old girl is brought to the emergency department with a 24-hour history of fever, irritability, and poor feeding. The patient never experienced such an episode in the past. She met the normal developmental milestones, and her vaccination history is up-to-date. She takes no medications, currently. Her temp... | C: Renal and bladder ultrasonography |
Answer the following medical question with one of the provided options: | Q:A 34-year-old woman presents to her primary care physician for a routine check-up. She complains that she is not feeling her normal self, but has no specific complaints. After a routine examination, the physician orders a full thyroid workup, including TSH, T3, and free T4. He also refers her directly to an oncologis... | E: Localized painless lymphadenopathy |
Answer the following medical question with one of the provided options: | Q:A 52-year-old man presents to his primary care physician to discuss laboratory results that were obtained during his annual checkup. He has no symptoms or concerns and denies changes in eating or urination patterns. Specifically, the physician ordered a panel of metabolic laboratory tests to look for signs of diabete... | D: This patient has type 2 diabetes as diagnosed by his oral tolerance blood glucose |
Answer the following medical question with one of the provided options: | Q:A 35-year-old man is brought to the emergency department from a kitchen fire. The patient was cooking when boiling oil splashed on his exposed skin. His temperature is 99.7°F (37.6°C), blood pressure is 127/82 mmHg, pulse is 120/min, respirations are 12/min, and oxygen saturation is 98% on room air. He has dry, nonte... | B: Additional fluids and escharotomy |
Answer the following medical question with one of the provided options: | Q:An 8-year-old girl is brought to the physician by her parents for the evaluation of an episode of unconsciousness while at the playground that morning. She was unconscious for about 15 seconds and did not shake, bite her tongue, or lose bowel or bladder control. Her grandfather died suddenly at the age of 29 of an un... | B: Sensorineural hearing loss |
Answer the following medical question with one of the provided options: | Q:A 42-year-old woman presents to the emergency department with abdominal pain. Her pain started last night during dinner and has persisted. This morning, the patient felt very ill and her husband called emergency medical services. The patient has a past medical history of obesity, diabetes, and depression. Her tempera... | B: Endoscopic retrograde cholangiopancreatography |
Answer the following medical question with one of the provided options: | Q:A 45-year-old female is undergoing renal transplantation for management of chronic renal failure secondary to glomerulonephritis. The transplant surgeon placed the donor kidney in the recipient and anastamosed the donor renal artery to the recipient's external iliac artery as well as the donor ureter to the recipient... | B: Type II hypersensitivity reaction |
Answer the following medical question with one of the provided options: | Q:A 68-year-old man is brought to the emergency department 30 minutes after the onset of uncontrollable jerking movements of his arms and legs followed by loss of consciousness. His wife says that he seemed confused this morning and had a headache. Immediately before the shaking episode, he said that he smelled rotten ... | B: Necrosis of the temporal lobes |
Answer the following medical question with one of the provided options: | Q:A 54-year-old man presents to the emergency department complaining of shortness of breath and fatigue for 1 day. He reports feeling increasingly tired. The medical records show a long history of intravenous drug abuse, and a past hospitalization for infective endocarditis 2 years ago. The echocardiography performed a... | C: Obliterated x descent |
Answer the following medical question with one of the provided options: | Q:A 68-year-old man is brought to the emergency department by his wife because of a 2-week history of progressive disorientation and a 1-day history of left-sided weakness and difficulty speaking. The wife reports that the patient had a minor fall 4 months ago, during which he may have hit his head. He has hypertension... | D: Tearing of bridging veins |
Answer the following medical question with one of the provided options: | Q:A 5-year-old boy with Down syndrome presents with his mother. The patient’s mother says that he isn’t playing or eating as much as he used to and seems lethargic. Expected developmental delays are present and stable. Physical examination reveals dry mucous membranes and abdominal distention with no tenderness to palp... | E: Hirschsprung's disease |
Answer the following medical question with one of the provided options: | Q:A 27-year-old man with an unknown past medical history is brought to the emergency department acutely intoxicated. The patient was found passed out in a park covered in vomit and urine. His temperature is 99.0°F (37.2°C), blood pressure is 107/68 mm Hg, pulse is 120/min, respiratory rate is 13/min, and oxygen saturat... | E: Environmental antigen |
Answer the following medical question with one of the provided options: | Q:A 24-year-old man presents to the emergency department for bloody stools. The patient states that he has had bloody diarrhea for the past 3 days without improvement. He recently returned from a camping trip where he drank stream water and admits to eating undercooked meats which included beef, chicken, pork, and salm... | D: Escherichia coli |
Answer the following medical question with one of the provided options: | Q:A 53-year-old woman is brought to the emergency department because of an episode of lightheadedness and left arm weakness for the last hour. Her symptoms were preceded by tremors, palpitations, and diaphoresis. During the past 3 months, she has had increased appetite and has gained 6.8 kg (15 lbs). She has hypertensi... | B: Insulinoma |
Answer the following medical question with one of the provided options: | Q:A 56-year-old man presents to his primary care doctor to discuss his plans for diet and exercise. He currently has hypertension treated with thiazide diuretics but is otherwise healthy. On exam, his temperature is 98.8°F (37.1°C), blood pressure is 122/84 mmHg, pulse is 70/min, and respirations are 12/min. His weight... | D: 275 |
Answer the following medical question with one of the provided options: | Q:A 19-year-old man is rushed to the emergency department 30 minutes after diving head-first into a shallow pool of water from a cliff. He was placed on a spinal board and a rigid cervical collar was applied by the emergency medical technicians. On arrival, he is unconscious and withdraws all extremities to pain. His t... | C: Rapid sequence intubation |
Answer the following medical question with one of the provided options: | Q:A 72-year-old male with a past medical history significant for aortic stenosis and hypertension presents to the emergency department complaining of weakness for the past 3 weeks. He states that, apart from feeling weaker, he also has noted lightheadedness, pallor, and blood-streaked stools. The patient's vital signs ... | B: Technetium-99 labelled erythrocyte scintigraphy |
Answer the following medical question with one of the provided options: | Q:A 46-day-old baby is admitted to the pediatric ward with an elevated temperature, erosive periumbilical lesion, clear discharge from the umbilicus, and failure to thrive. She is the first child of a consanguineous couple born vaginally at 38 weeks gestation in an uncomplicated pregnancy. She was discharged home from ... | C: The patient’s leukocytes fail to adhere to the endothelium during their migration to the site of infection. |
Answer the following medical question with one of the provided options: | Q:An 8-year-old boy is brought to the physician because of a 7-day history of a progressively worsening cough. The cough occurs in spells and consists of around 5–10 coughs in succession. After each spell he takes a deep, noisy breath. He has vomited occasionally following a bout of coughing. He had a runny nose for a ... | B: Administer oral azithromycin to all family members and Tdap vaccination to the father and mother |
Answer the following medical question with one of the provided options: | Q:An investigator is studying the recycling of heme proteins in various cell types. Heat denaturation and high-performance liquid chromatography are used to carry out and observe the selective destruction of hemoglobin molecules in red blood cells. It is found that these cells are unable to regenerate new heme molecule... | B: Mitochondria |
Answer the following medical question with one of the provided options: | Q:A 7-year-old boy is brought to the emergency department by his parents for worsening symptoms. The patient recently saw his pediatrician for an acute episode of sinusitis. At the time, the pediatrician prescribed decongestants and sent the patient home. Since then, the patient has developed a nasal discharge with wor... | B: Foreign body obstruction |
Answer the following medical question with one of the provided options: | Q:A 24-year-old woman delivers a girl by normal vaginal delivery, Apgar scores are 8 and 9 at 1 and 5 minutes respectively. The newborn’s vitals are normal. On examination, the attending pediatrician finds a circular skin defect that measures 0.5 cm in diameter. The defect is hairless and extends into the dermis. The d... | B: Methimazole |
Answer the following medical question with one of the provided options: | Q:A 63-year-old man comes to the physician because of a 2-day history of a painful rash on his right flank. Two years ago, he underwent cadaveric renal transplantation. Current medications include tacrolimus, mycophenolate mofetil, and prednisone. Examination shows an erythematous rash with grouped vesicles in a band-l... | A: Sensory neuropathy |
Answer the following medical question with one of the provided options: | Q:A 16-year-old girl is brought to the emergency room with hyperextension of the cervical spine caused by a trampoline injury. After ruling out the possibility of hemorrhagic shock, she is diagnosed with quadriplegia with neurogenic shock. The physical examination is most likely to reveal which of the following constel... | C: Pulse: 56/min; blood pressure: 88/40 mm Hg; respirations: 22/min; loss of rectal tone on DRE; reduced muscle power and absence of sensations in the limbs |
Answer the following medical question with one of the provided options: | Q:A 64-year-old woman presents to the clinic with a history of 3 fractures in the past year with the last one being last month. Her bone-density screening from last year reported a T-score of -3.1 and she was diagnosed with osteoporosis. She was advised to quit smoking and was asked to adapt to a healthy lifestyle to w... | C: The patient must stay upright for at least 30 minutes after taking this medication |
Answer the following medical question with one of the provided options: | Q:A 27-year-old woman comes to the physician for a routine health maintenance examination. She feels well. She had a chlamydia infection at the age of 22 years that was treated. Her only medication is an oral contraceptive. She has smoked one pack of cigarettes daily for 6 years. She has recently been sexually active w... | C: Perform HPV testing |
Answer the following medical question with one of the provided options: | Q:A 26-year-old pregnant woman (gravida 2, para 1) presents on her 25th week of pregnancy. Currently, she has no complaints. Her previous pregnancy was unremarkable. No abnormalities were detected on the previous ultrasound (US) examination at week 13 of pregnancy. She had normal results on the triple test. She is huma... | D: Cordocentesis |
Answer the following medical question with one of the provided options: | Q:DNA replication is a highly complex process where replication occurs on both strands of DNA. On the leading strand of DNA, replication occurs uninteruppted, but on the lagging strand, replication is interrupted and occurs in fragments called Okazaki fragments. These fragments need to be joined, which of the following... | D: DNA polymerase I |
Answer the following medical question with one of the provided options: | Q:A 3-day-old boy develops several episodes of complete body shaking while at the hospital. The episodes last for about 10–20 seconds. He has not had fever or trauma. He was born at 40 weeks' gestation and has been healthy. The mother did not follow-up with her gynecologist during her pregnancy on a regular basis. Ther... | A: Maternal diabetes |
Answer the following medical question with one of the provided options: | Q:A 3-month-old boy is brought to the physician by his mother because of poor weight gain. She also reports a dusky blue discoloration to his skin during feedings and when crying. On examination, there is a harsh, systolic murmur heard over the left upper sternal border. An x-ray of the chest is shown below. Which of t... | D: Right ventricular outflow obstruction |
Answer the following medical question with one of the provided options: | Q:A 35-year-old male presents to his primary care physician with pain along the bottom of his foot. The patient is a long-time runner but states that the pain has been getting worse recently. He states that when running and at rest he has a burning and aching pain along the bottom of his foot that sometimes turns to nu... | D: Tarsal tunnel syndrome |
Answer the following medical question with one of the provided options: | Q:A previously healthy 64-year-old woman comes to the physician because of a dry cough and progressively worsening shortness of breath for the past 2 months. She has not had fever, chills, or night sweats. She has smoked one pack of cigarettes daily for the past 45 years. She appears thin. Examination of the lung shows... | E: Chronic obstructive pulmonary disease |
Answer the following medical question with one of the provided options: | Q:A 33-year-old man presents to the clinic complaining of multiple painful joints for the past 2 weeks. The patient notes no history of trauma or any joint disorders. The patient states that he is generally healthy except for a recent emergency room visit for severe bloody diarrhea, which has resolved. On further quest... | B: Nonsteroidal anti-inflammatory drugs (NSAIDs) or immunosuppressants |
Answer the following medical question with one of the provided options: | Q:A 28-year-old woman presents to the emergency department with lateral knee pain that started this morning. The patient is a college student who is currently on the basketball team. She states her pain started after she twisted her knee. Her current medications include albuterol and ibuprofen. The patient's vitals are... | A: Iliotibial band syndrome |
Answer the following medical question with one of the provided options: | Q:A 56-year-old man comes to the physician for a follow-up examination. One month ago, he was diagnosed with a focal seizure and treatment with a drug that blocks voltage-gated sodium channels was begun. Today, he reports that he has not had any abnormal body movements, but he has noticed occasional double vision. His ... | A: Carbamazepine |
Answer the following medical question with one of the provided options: | Q:A 22-year-old woman comes to the physician to discuss the prescription of an oral contraceptive. She has no history of major medical illness and takes no medications. She does not smoke cigarettes. She is sexually active with her boyfriend and has been using condoms for contraception. Physical examination shows no ab... | B: Inhibition of rise in luteinizing hormone |
Answer the following medical question with one of the provided options: | Q:A 13-year-old boy is brought to the emergency department by his mother because of vomiting and severe testicular pain for 3 hours. The boy has had 4–5 episodes of vomiting during this period. He has never had a similar episode in the past and takes no medications. His father died of testicular cancer at the age of 50... | B: Surgical exploration of the scrotum |
Answer the following medical question with one of the provided options: | Q:A 32-year-old woman comes to the physician for a screening health examination that is required for scuba diving certification. The physician asks her to perform a breathing technique: following deep inspiration, she is instructed to forcefully exhale against a closed airway and contract her abdominal muscles while di... | C: Decreased left ventricular stroke volume |
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