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Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old girl is brought to the physician by her mother because of a 1-year history of worsening clumsiness. Initially, she swayed while walking; over the past 3 months, she has fallen 4 times. Ophthalmic examination shows a horizontal nystagmus. Proprioception and vibratory sensation are decreased i... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old man comes to the physician because of a 2-day history of malaise and a painful, pruritic rash on his lower back and thighs. His temperature is 37.8°C (100°F). Physical examination shows the findings in the photograph. Skin scrapings from the thigh grow neutral colonies on MacConkey agar. The... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-month-old baby boy and his mother present to his pediatrician for vaccination as per the immunization schedule. His mother denies any active complaints but mentions that he has not smiled yet. The boy was born at 39 weeks gestation via spontaneous vaginal delivery. His mother received minimal prenatal... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old woman presents to the emergency department with fever, cough, and difficulty in breathing for the last 6 hours. She also mentions that she noticed some blood in her sputum an hour ago. She denies nasal congestion or discharge, sneezing, wheezing, chest pain, or palpitation. Her past history ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man comes to the physician because of a 5-day history of swelling in his left arm. Two months ago, he was diagnosed with a deep venous thrombosis in the left calf. He has had a 7-kg (15-lb) weight loss in the last 3 months. He has smoked 1 pack of cigarettes daily for the past 25 years. His ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-day-old infant girl is brought to the emergency department because of a 2-hour history of fever, vomiting, and diarrhea. She has fed less and has had decreased urine output for 1 day. She was born at 33 weeks' gestation and weighed 1400-g (3-lb 1-oz). Her diet consists of breast milk and cow milk pro... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 42-year-old woman comes to the physician because of a 7-month history of diffuse weakness. There is no cervical or axillary lymphadenopathy. Cardiopulmonary and abdominal examination shows no abnormalities. A lateral x-ray of the chest shows an anterior mediastinal mass. Further evalu... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old patient presents to the emergency department with left wrist pain after falling off of his bike and landing on his left hand. On physical exam the thenar eminence is red, swollen, and tender to palpation, so a radiograph is ordered. The patient is worried because he learned in biology class ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old G3P2 presents at 33 weeks gestation with vaginal bleeding that started last night while she was asleep. She denies uterine contractions or abdominal pain. She had a cesarean delivery in her previous pregnancy. She also reports a 10 pack-year smoking history. The vital signs are as follows: b... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of scientists is conducting an experiment on the human cells involved in the immune response. They genetically modify B cells so they do not express the cluster of differentiation 21 (CD21) on their cell surfaces. The pathogenesis of which of the following organisms would most likely be affected b... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old boy is brought to the physician by his parents, who are concerned about recurrent muscle cramps he experiences while playing soccer. The boy has always loved sports and has been playing in a soccer league for the past 3 years. He now complains of severe cramping pain in his legs after intens... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 40-year-old male presents to his primary care physician for a regularly scheduled check-up. Physical examination reveals nontender cervical lymphadenopathy. A biopsy of the lymph node reveals aggregates of follicular architecture, and cytogenic analysis shows a t(14;18) translocation. The protein most l... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman comes to the physician for the evaluation of blindness in her right eye that suddenly started 1 hour ago. She has no feeling of pain, pressure, or sensation of a foreign body in the right eye. She has a history of major depressive disorder treated with fluoxetine. The patient attends c... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old woman presents to the clinic with several days of vomiting and diarrhea. She also complains of headaches, muscle aches, and fever, but denies tenesmus, urgency, and bloody diarrhea. Past medical history is insignificant. When asked about any recent travel she says that she just came back fro... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old female presents to the emergency room with headache and palpitations. She is sweating profusely and appears tremulous on exam. Vital signs are as follows: HR 120, BP 190/110, RR 18, O2 99% on room air, and Temp 37C. Urinary metanephrines and catechols are positive. Which of the following med... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old boy is brought to the physician for evaluation of short stature. He is at the 5th percentile for height, 65th percentile for weight, and 95th percentile for head circumference. Examination shows midface retrusion, a bulging forehead, and flattening of the nose. The extremities are disproporti... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old woman comes to the physician for week-long episodes of headaches that have occurred every four weeks for the last year. During these episodes she also has bouts of lower abdominal pain and breast tenderness. She is often irritable at these times. Her menses occur at regular 28-day intervals ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 51-year-old woman presents for her annual wellness visit. She says she feels healthy and has no specific concerns. Past medical history is significant for bipolar disorder, hypertension, and diabetes mellitus type 2, managed with lithium, lisinopril, and metformin, respectively. Her family history is si... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year-old woman comes to the physician because of right-sided inguinal pain for the past 8 weeks. During this period, the patient has had increased pain during activities such as walking and standing. She has no nausea, vomiting, or fever. Her temperature is 36.8°C (98.2°F), pulse is 73/min, and blood... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man presents to the emergency department with decreased exercise tolerance and shortness of breath which has progressed slowly over the past month. The patient recalls that shortly before the onset of these symptoms, he had a low-grade fever, malaise, and sore throat which resolved after a f... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old boy is brought to the physician for excessive weight gain. The mother reports that her son has been “chubby” since he was a toddler and that he has gained 10 kg (22 lbs) over the last year. During this period, he fractured his left arm twice from falling on the playground. He had cryptorchidi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 40-year-old man comes to the physician because of a 2-year history of gradually worsening shortness of breath. He smoked half a pack of cigarettes daily for 10 years but stopped 8 years ago. His pulse is 72/min, blood pressure is 135/75 mm Hg, and respirations are 20/min. Examination shows an increased ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy presents to an urgent care clinic with his mother. She states that his behavior has been lethargic for the past 3 days. She also notes that he has had a runny nose, mild cough, and sore throat during this time. She does not believe that he has been febrile. His temperature is 99.1°F (37.2... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old male with no significant past medical history goes camping with several friends in Virginia. Several days after returning, he begins to experience fevers, headaches, myalgias, and malaise. He also notices a rash on his wrists and ankles (FIgure A). Which of following should be initiated for ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An obese 63-year-old man comes to the physician because of 3 episodes of red urine over the past week. He has also had recurrent headaches and intermittent blurry vision during the past month. He has benign prostatic hyperplasia. He works as an attendant at a gas station. The patient has smoked one pack o... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old man presents to the emergency department after a suicide attempt. He is admitted to the hospital and diagnosed with schizoaffective disorder. A review of medical records reveals a history of illicit drug use, particularly cocaine and amphetamines. He is started on aripiprazole, paroxetine, a... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old man visits the clinic with his wife. He has had difficulty swallowing solid foods for the past 2 months. His wife adds that his voice is getting hoarse but they thought it was due to his recent flu. His medical history is significant for type 2 diabetes mellitus for which he is on metformin.... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy is brought to the physician for generalized fatigue and multiple episodes of abdominal pain and vomiting for the past week. His last bowel movement was 4 days ago. He has been having behavioral problems at home for the past few weeks as well. He can walk up stairs with support and build a... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 74-year-old man presents to the emergency department by paramedics for slurred speech and weakness in the left arm and leg for 1 hour. The patient was playing with his grandson when the symptoms started and his wife immediately called an ambulance. There is no history of head trauma or recent surgery. T... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old African American woman presents to the office complaining of blurry vision and headache for the past 2 weeks. She states that she has not been feeling herself lately and also fell down once after a dizzy episode. Her medical history is remarkable for hypertension and pulmonary sarcoidosis tr... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old man comes to the emergency department because of episodic palpitations for the past 12 hours. He has no chest pain. He has coronary artery disease and type 2 diabetes mellitus. His current medications include aspirin, insulin, and atorvastatin. His pulse is 155/min and blood pressure is 116/... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman is brought to the hospital by her mother because she has "not been herself" for the past 3 months. The patient says she hears voices in her head. The mother said that when she is talking to her daughter she can’t seem to make out what she is saying; it is as if her thoughts are disorga... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old girl is brought to the emergency department by her parents because of a painful rash of her hands and lower arms. According to the mother, she developed blisters and redness on her arms 2 days ago. Both parents claim there is no recent history of fever, itching, or trauma. Physical examinatio... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 53-year-old man is brought to the emergency department for confusion. He was in his usual state of health until about 3 hours ago when he tried to use his sandwich to turn off the TV. He also complained to his wife that he had a severe headache. Past medical history is notable for hypertension, which ha... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 66-year-old man is brought into the emergency department by his daughter for a change in behavior. Yesterday the patient seemed more confused than usual and was asking the same questions repetitively. His symptoms have not improved over the past 24 hours, thus the decision to bring him in today. Last ye... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old woman presents to her primary care physician for a wellness check-up. She states that recently she has been feeling well other than headaches that occur occasionally, which improve with ibuprofen and rest. She has a past medical history of hypertension and headaches and is currently taking h... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old man is brought to the physician 25 minutes after an episode of violent jerky movements of his hands and legs that lasted for 5 minutes. After the episode, he had difficulty conversing. For the past 10 days, he has had a left-sided headache and nausea. Apart from a history of recurrent ear in... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old girl is brought to the physician by her mother because of high fever and left ankle and knee joint swelling. She had a sore throat 3 weeks ago. There is no family history of serious illness. Her immunizations are up-to-date. She had an episode of breathlessness and generalized rash when she ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old woman with HIV infection is brought to the emergency department because of a 2-week history of headaches, blurred vision, and confusion. Her current medications include antiretroviral therapy and trimethoprim-sulfamethoxazole. Neurological examination shows ataxia and memory impairment. Her ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old man presents to a psychiatrist for the management of substance abuse. He reports that he started using the substance 2 years ago and that he smokes it after sprinkling it on his cigarette. He describes that after smoking the substance, he feels excited and as if he does not belong to himself... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An experimental infusable drug, X729, is currently being studied to determine its pharmacokinetics. The drug was found to have a half life of 1.5 hours and is eliminated by first order kinetics. What is the minimum number of hours required to reach a steady state concentration of >90%? ---- <<Choices:>> A... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man comes to the physician for a follow-up examination. He feels well. His last visit to a physician was 3 years ago. He has chronic obstructive pulmonary disease, coronary artery disease, and hypertension. Current medications include albuterol, atenolol, lisinopril, and aspirin. He has smok... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old retired shipyard worker received a chest x-ray as part of a routine medical work-up. The radiologist reported incidental findings suggestive of an occupational lung disease. Which of the following descriptions is most consistent with this patient's film? ---- <<Choices:>> A) Enlarged hilar l... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old man presents to the clinic with a dull low back pain radiating to the buttocks. He first noted it about 2 years ago and it has; progressed since then. He notes that it is worse in the morning and improves later in the day after physical activity. The patient also reports morning stiffness la... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old man who was admitted for a fractured hip and is awaiting surgery presents with acute onset altered mental status. The patient is noted by the nurses to be shouting and screaming profanities and has already pulled out his IV and urine catheter. He says he believes he is being kept against his... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old woman comes to the physician for evaluation of a breast lump she noticed 2 days ago while showering. She has no history of major illness. Her mother died of ovarian cancer at age 38, and her sister was diagnosed with breast cancer at age 33. Examination shows a 1.5-cm, nontender, mobile mass... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-month-old boy is brought to the physician because of abnormal crawling and inability to sit without support. A 2nd-trimester urinary tract infection that required antibiotic use and a spontaneous preterm birth via vaginal delivery at 36 weeks’ gestation both complicated the mother’s pregnancy. Physica... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 69-year-old man is brought to the emergency room by his wife 30 minutes after losing consciousness while they were working in their garden together. The patient says that time seemed to slow down, his vision went dark, and he had a sensation of falling. After 3–5 seconds, he awoke slightly disoriented b... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 69-year-old man comes to the physician because of a 1-week history of blood in the urine and fatigue. He also has had a 5.0-kg (11-lb) weight loss during the past month. Physical examination shows pallor and cachexia. A nontender right flank mass is palpated. A CT scan of the chest, abdomen, and pelvis ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old man is brought to the emergency department by his daughter because he was found to have decreased alertness that has gotten progressively worse. Three weeks ago he was diagnosed with an infection and given an antibiotic, though his daughter does not remember what drug was prescribed. His med... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> Steroid hormone synthesis, lipid synthesis, and chemical detoxification are activities of which of the following? ---- <<Choices:>> A) Golgi bodies B) Peroxisomes C) Smooth Endoplasmic Reticulum D) Nucleolus ---- <<Answer:>> | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old woman presents to the emergency department due to progressive shortness of breath and a dry cough for the past week. She notes that her symptoms are exacerbated by physical activity and relieved by rest. The woman was diagnosed with chronic kidney disease 2 years ago and was recently started... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old female is brought to the emergency department by her roommate with a one day history of fever and malaise. She did not feel well after class the previous night and has been in her room since then. She has not been eating or drinking due to severe nausea. Her roommate checked on her one hour ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man is brought to the emergency department because of a fall that occurred while he was taking a shower earlier that morning. His wife heard him fall and entered the bathroom to find all four of his extremities twitching. The episode lasted approximately 30 seconds. He was unsure of what had... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 48-year-old woman comes to the physician because of a 6-month history of excessive fatigue and a 1-month history of progressively increasing generalized pruritus. She has hypothyroidism, for which she receives thyroid replacement therapy. Physical examination shows jaundice. The liver is palpated 4 cm b... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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. ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 tr... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 maste... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 play... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 bi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 admini... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 sho... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 res... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 rec... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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: tempera... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 positio... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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. H... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 hyper... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 mon... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 temp... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 re... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 disorde... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 collect... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 l... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 co... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 c... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 hea... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 doxorub... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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, a... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 t... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> 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. Curre... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 t... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ill... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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? ---- <<Choices:>> A) The left kidney has a longer renal vein than the righ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> 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... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> 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 contrain... | D |
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