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Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is brought to the emergency department with a history of unintentional ingestion of seawater while swimming in the sea. The amount of seawater ingested is not known. There is no history of vomiting. On physical examination, the boy appears confused and is asking for more water to drink. H... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An 87-year-old male presents to his neurologist for a follow-up visit. He is being followed for an inoperable tumor near his skull. He reports that he recently noticed that food has started to lose its taste. He also notes increasing difficulty with swallowing. He has a history of myocardial infarction, d... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 49-year-old woman with a history of intravenous drug use comes to the physician because of a 6-month history of fatigue, joint pain, and episodic, painful discoloration in her fingers when exposed to cold weather. She takes no medications. She has smoked one pack of cigarettes daily for the past 22 year... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old man presents to his physician for difficulty swallowing for 2 months. He describes food getting stuck down his windpipe and has been feeling very anxious around meal time because he is thinking that he may have esophageal cancer. He has had an influenza-like infection that lasted about 6 wee... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old man comes to the emergency department for an injury sustained while doing construction. Physical examination shows a long, deep, irregular laceration on the lateral aspect of the left forearm with exposed fascia. Prior to surgical repair of the injury, a brachial plexus block is performed us... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old woman comes to the emergency department because of a 4-month history of fatigue, shortness of breath with exertion, and dizziness. She has a history of atrial fibrillation and had a single-chamber pacemaker placed five years ago after an episode of syncope. Her pulse is 66/min and blood pres... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old college student is admitted to the emergency department with complaints of pharyngitis, headache, and a persistent, non-productive, dry, hacking cough. The patient complains of feeling tired and fatigued and denies fever/chills. On physical examination, her mucosa is pale. A complete blood c... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 29-year-old Taiwanese woman comes to the emergency department with vaginal bleeding and pelvic pressure for several hours. Over the past 2 weeks, she had intermittent nausea and vomiting. A home urine pregnancy test was positive 10 weeks ago. She has had no prenatal care. Her pulse is... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 10-year-old boy from Sri Lanka suffers from an autosomal dominant condition, the hallmark of which is hyperimmunoglobulinemia E and eosinophilia. He suffers from recurrent infections and takes antibiotic chemoprophylaxis. A STAT3 mutation analysis has been performed to confirm the diagnosis of Job syndr... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-day-old male presents to the pediatrician for a well visit. The patient has been exclusively breastfed since birth. His mother reports that he feeds for 30 minutes every two hours. She also reports that she often feels that her breasts are not completely empty after each feeding, and she has started u... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old woman visits her primary care provider complaining of fatigue, weight gain, increased thirst, hair loss, and headaches. She has been perimenopausal for 3 years. She was diagnosed with rheumatoid arthritis 4 years ago and prescribed oral prednisolone. Currently, she takes prednisolone and ome... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-day-old newborn girl is brought into the hospital by her mother because of excessive vomiting and poor feeding. The mother did not have antenatal care. Her temperature is 36.8°C (98.2°F), blood pressure is 50/30 mm Hg, and pulse is 150/min. On examination, the infant is dehydrated and demonstrates sig... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old G1P0 female at 32 weeks gestation presents to the emergency department with vaginal bleeding. She has had minimal prenatal care to-date with only an initial visit with an obstetrician after a positive home pregnancy test. She describes minimal spotting that she noticed earlier today that has... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old G2P1 in her 22nd week of pregnancy presents with a primary complaint of peripheral edema. Her first pregnancy was without any major complications. Evaluation reveals a blood pressure of 160/90 and urinalysis demonstrates elevated levels of protein; both of these values were within normal lim... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy is brought to the physician for a well-child examination. He feels well. He has no history of serious illness. He has received all age-appropriate screenings and immunizations. His 7-year-old brother was treated for nephrotic syndrome 1 year ago. He is at 50th percentile for height and 6... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-year-old child presents for evaluation of a medical condition associated with recurrent infections. After reviewing all of the medical history, gene therapy is offered to treat a deficiency in adenosine deaminase (ADA). ADA deficiency is the most common autosomal recessive mutation in which of the fol... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 44-year-old man seeks evaluation at a clinic because he is experiencing a problem with his sexual health for the past month. He says he does not get erections like he used to, despite feeling the urge. In addition to heart failure, he has angina and hypertension. His regular oral medications include aml... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 2-year-old girl is brought to the physician because of a 1-week history of yellow discoloration of her skin, loss of appetite, and 3 episodes of vomiting. Her parents also report darkening of her urine and light stools. During the last 2 days, the girl has been scratching her abdomen ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 26-year-old woman comes to the physician because of a 2-day history of pain with urination. She has been sexually active with two partners over the past year. She uses condoms for contraception. Vital signs are within normal limits. Physical examination shows suprapubic tenderness. Ur... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man presents to the urgent care clinic for 3 hours of worsening cough, shortness of breath, and dyspnea. He works as a long-haul truck driver, and he informs you that he recently returned to the west coast from a trip to Arkansas. His medical history is significant for gout, hypertension, hy... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old man comes to the physician for the evaluation of difficulty swallowing of both solids and liquids for 1 month. During the past 5 months, he has also had increased weakness of his hands and legs. He sails regularly and is unable to hold the ropes as tightly as before. Ten years ago, he was in... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A study is performed to determine whether cognitive behavioral therapy (CBT) increases compliance to dietary regimens. In order to test this hypothesis, a random group of volunteers who want to lose weight are selected from the community and subsequently randomized to no intervention and CBT groups. They ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old woman presents to the emergency department because of agitation and sweating. History shows she is currently being treated for depression with citalopram. She also takes tramadol for back pain. Her temperature is 38.6°C (97.9°F), the pulse is 108/min, the respirations are 18/min, and the blo... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old female presents to her primary care physician with complaints of fatigue, constipation, and what the patient describes as "aching in her bones." Her medical history is significant for hypertension, well-controlled on lisinopril, and two prior kidney stones that both passed spontaneously with... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old woman presents with acute onset abdominal pain radiating to her back, nausea, and vomiting. CT scan suggests a diagnosis of acute pancreatitis. The pathogenesis of acute pancreatitis relates to inappropriate activation of trypsinogen to trypsin. Which of the following activates trypsin in no... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A mutant stem cell was created by using an inducible RNAi system, such that when doxycycline is added, the siRNA targeting DNA helicase is expressed, effectively knocking down the gene for DNA helicase. Which of the following will occur during DNA replication? ---- <<Choices:>> A) DNA is not unwound B) DN... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old man is on a week-long cruise vacation with his family to celebrate his mother's 80th birthday. He has a very important presentation at work to give in one month, which will in part determine whether he receives a promotion. He decides to focus on enjoying the vacation and not to worry about ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 16-year-old boy comes to the physician because of painless enlargement of his left testis for the past 2 weeks. The patient reports that the enlargement is worse in the evenings, especially after playing soccer. He has not had any trauma to the testes. There is no personal or family history of serious i... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> Two months after giving birth to a boy, a 27-year-old woman comes to the physician with her infant for a well-child examination. She was not seen by a physician during her pregnancy. Physical examination of the mother and the boy shows no abnormalities. Laboratory studies show elevated titers of hepatitis... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An experiment to determine the effects of gravity on blood pressure is conducted on 3 individuals of equal height and blood pressure oriented in different positions in space. Participant A is strapped in a supine position on a bed turned upside down in a vertical orientation with his head towards the floo... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A new study is investigating the effects of an experimental drug, Exerzisin, on the duration and intensity of exercise. In the treatment group participants are given daily Exerzisin at the main treatment facility and instructed to exercise as much as they would like on the facility's exercise equipment. D... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old Hispanic boy is brought to the physician by his mother because of left groin pain for 1 month. The pain radiates to his left knee and is aggravated on walking. He fell during soccer practice 5 weeks ago but did not see a doctor about it and does not recall any immediate and persistent pain a... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old woman presents with generalized weakness and dizziness for the past 3 weeks. Past medical history is significant for systemic lupus erythematosus diagnosed 15 years ago, for which she takes hydroxychloroquine and methotrexate. No significant family history. Her vital signs include: temperatu... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 46-year-old man presents after he accidentally got splashed with a liquid insecticide that was stored in a bucket in the storeroom one hour ago. He says that he can’t stop coughing and is having problems breathing. He also says he has a pain in his thighs which is unbearable, and his vision is blurry. H... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A female infant is born with a mutation in PKD1 on chromosome 16. An abdominal ultrasound performed shortly after birth would most likely reveal which of the following? ---- <<Choices:>> A) Bilateral kidney enlargement B) Microscopic cysts C) Adrenal atrophy D) Normal kidneys ---- <<Answer:>> | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old man is admitted to the hospital for the evaluation of symmetric, ascending weakness that started in his feet and has become progressively worse over the past 5 days. A lumbar puncture is performed to confirm the diagnosis. As the needle is advanced during the procedure, there is resistance j... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman comes to the emergency department because of a 5-day history of anxiety, irritability, insomnia, and abdominal pain that began after a weekend of partying. She also reports “bloody” urine as well as a tingling sensation in her hands and feet. She has never experienced similar symptoms.... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old immigrant from Mexico presents to your clinic for a physical. He tells you that several weeks ago, he noticed a lesion on his penis which went away after several weeks. It was nontender and did not bother him. He currently does not have any complaints. His temperature is 97.9°F (36.6°C), blo... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 10-year-old male presents with his mother with multiple complaints. A few weeks ago, he had a sore throat for several days that improved without specific therapy. Additionally, over the past several days he has experienced pain in his ankles and wrists and, more recently, his left knee. His mother also ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 75-year-old man is brought to the emergency department by his son. He is suffering from left-sided weakness. The symptoms started 2 hours ago with sudden left-sided weakness. The patient is a known hypertensive, who is inconsistently compliant with his 2 antihypertensive medications and a heavy smoker, ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman, gravida 2, para 2, comes to the physician for the evaluation of a palpable mass in her right breast that she first noticed 1 week ago. She has no associated pain. She has never had a mammogram previously. She has type II diabetes mellitus treated with metformin. She has no family hist... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 70-year-old female presents to you for an office visit with complaints of forgetfulness. The patient states that over the last several years, the patient has stopped cooking for herself even though she lives alone. Recently, she also forgot how to drive back home from the grocery store and has difficult... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man presents to the emergency department with hematuria and hemoptysis that started in the morning. He notes that he has had frequent lung infections throughout his adult life, the most recent being 2 weeks ago. He also mentions that he has had hematuria twice before but never as severe as h... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old man presents to the ED complaining of back and left leg pain. He was lifting heavy furniture while helping his daughter move into college when all of sudden he felt a sharp pain at his back. The pain is described as severe, worse with movement, and shoots down his lateral thigh. The patient ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old man presents to his primary care provider with a history of recurrent cough, wheezing, and breathlessness since early childhood. He previously diagnosed with allergic rhinitis and bronchial asthma. For his allergic rhinitis, he uses intranasal fluticasone. For his asthma, he uses an albutero... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman comes to the physician for a routine pelvic examination. She feels well. Menses occur at 30-day intervals and last 7 days. Her last menstrual period was 6 days ago. She has no history of abnormal Pap smears; her last Pap smear was 13 months ago. She is sexually active with three male p... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> Two weeks after being hospitalized for acute pancreatitis, a 36-year-old man comes to the physician for a follow-up examination. Multiple family members have coronary artery disease. Physical examination shows multiple, yellow papular lesions on both upper eyelids. Fasting serum lipid studies show: Total ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old man with type 2 diabetes mellitus comes to the physician for a follow-up evaluation. He was recently diagnosed with hyperlipidemia, for which he takes several medications. His serum total cholesterol concentration is 295 mg/dL and serum high-density lipoprotein concentration is 19 mg/dL (N: ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 69-year-old smoker presents to physician after noticing that his face seems to be more swollen than usual. Upon further questioning, he reports increasing shortness of breath and cough over the past 6 months. On exam, his physician notices venous distention in his neck and distended veins in the upper c... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old man comes to the emergency department for the evaluation of worsening fatigue, urinary frequency, and constipation over the past 5 days. He was recently diagnosed with metastatic bladder cancer and is currently awaiting treatment. He has smoked 1 pack of cigarettes daily for 35 years. Physic... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy had increased bleeding during a circumcision. His birth and delivery were uncomplicated, and his mother had no issues with prolonged bleeding during labor. Of note, his maternal grandfather has a history of bleeding complications. The boy's vital signs are stable and physical examination ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old woman is brought to the emergency department for a severe, sudden-onset headache, light-sensitivity, and neck stiffness that began 30 minutes ago. A CT scan of the head shows hyperdensity between the arachnoid mater and the pia mater. The patient undergoes an endovascular procedure. One week... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An experimental compound added to a protein disrupts both alpha helices as well as beta-pleated sheets. Which of the following has the experimental compound affected? ---- <<Choices:>> A) Hydrogen bonds between amino acids B) Covalent peptide bonds between amino acids C) Ionic bonds between amino acids D)... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old woman and her husband are admitted to the office due to difficulties conceiving a child for the past year. Her menarche was at the age of 15 years, and her periods have been regular since then. Her medical history is positive for an abortion with curettage 5 years ago. A spermogram on the pa... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old woman is brought to the emergency room by her husband for “weird behavior" for the past several weeks. He reports that her right arm has been moving uncontrollably in a writhing movement and that she has been especially irritable. She has a history of depression, which was diagnosed 4 years ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old Caucasian man is referred to a gastroenterologist for difficulty in swallowing. He has been cutting his food into much smaller pieces when he eats for a little over a year. Recently, he has been having difficulty with liquid foods like soup as well. His past medical history is irrelevant, bu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man with asthma comes to the physician because of a 1-month history of progressively worsening shortness of breath and cough. He also has a history of chronic sinusitis and foot drop. Current medications include an albuterol inhaler and inhaled corticosteroid. Physical examination shows diff... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man presents to the emergency department with a 1-day history of difficulty swallowing. He also mentions that he has been frequently experiencing moderate to severe burning pain localized to the epigastric region for the last 3 weeks. The patient denies any history of vomiting, hematemesis, ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old woman presents to the emergency room with chest pain that started 20 minutes ago while watching television at home. The pain is substernal and squeezing in nature. She rates the pain as 6/10 and admits to having similar pain in the past with exertion. Her past medical history is significant ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old woman who was recently diagnosed with Crohn disease comes to the physician for evaluation of her immunosuppressive therapy. She has had recurrent flares since her diagnosis. Physical examination shows two shallow ulcers on her oral mucosa. The physician considers adding azathioprine to her m... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old woman is brought to the emergency department after a motor vehicle accident. She was driving on the highway when she was struck by a van. At the hospital she was conscious but was bleeding heavily from an open wound in her left leg. Pulse is 120/min and blood pressure is 96/68 mm Hg. She rec... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old man presents to the emergency department acutely confused. The patient was found down at a local construction site by his coworkers. The patient has a past medical history of a seizure disorder and schizophrenia and is currently taking haloperidol. He had recent surgery 2 months ago to remov... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man is brought to the emergency department because of severe headache over the past hour. He also reports nausea and one episode of non-bloody vomiting. He has a history of hypertension and type 2 diabetes mellitus. He does not smoke or drink alcohol. Medications include enalapril and metfor... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man comes to the emergency department 1 hour after a loss of consciousness. His wife said he suddenly fainted while she was adjusting his necktie. He regained consciousness within 30 seconds and was fully alert and oriented. He has had two similar episodes in the last year. He has anxiety an... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old boy is brought to the pediatrician by his parents for concern of general fatigue and recurrent abdominal pain. You learn that his medical history is otherwise unremarkable and that these symptoms started about 3 months ago after they moved to a different house. Based on clinical suspicion lab... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3175-g (7-lb) female newborn is delivered at 37 weeks to a 26-year-old primigravid woman. Apgar scores are 8 and 9 at 1 and 5 minutes, respectively. The pregnancy had been uncomplicated. The mother had no prenatal care. She immigrated to the US from Brazil 2 years ago. Immunization records are not avail... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old woman presents to the emergency room with left leg pain and swelling. She recently returned to the United States from a trip to India. Her past medical history is notable for osteoarthritis in both hips, lumbar spinal stenosis, and hypertension. She takes lisinopril. Her temperature is 99°F ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A newborn male is evaluated 30 minutes after birth. He was born at 38 weeks gestation to a 39-year-old gravida 3 via vaginal delivery. The pregnancy was complicated by gestational diabetes, and the patient’s mother received routine prenatal care. The family declined all prenatal testing, including an anat... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old Asian woman comes to the office complaining of fatigue. She states that for weeks she has noticed a decrease in her energy. She is a spin instructor, and she has been unable to teach. She said that when she was bringing groceries up the stairs yesterday she experienced some breathlessness an... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old man presents to the emergency room with facial weakness. He first noticed that he was having trouble smiling normally while at dinner with friends the night before. He also noticed that his food had less taste than usual during the dinner. He woke up on the day of presentation with a complet... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old college student comes to the emergency department because of a two-day history of vomiting and epigastric pain that radiates to the back. He has a history of atopic dermatitis and Hashimoto thyroiditis. His only medication is levothyroxine. He has not received any routine vaccinations. He dr... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2600-g (5-lb 8-oz) male newborn is delivered at 34 weeks' gestation to a 22-year-old woman. The mother did not have prenatal care. Upon examination in the delivery room, the newborn's skin appears blue. He is gasping and breathing irregularly. The ears are low-set with broad auricles, and the nasal tip ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An 11-year-old boy with HIV and esophageal candidiasis is being treated with caspofungin. What is the mechanism of action of this drug? ---- <<Choices:>> A) Pore formation in cell membranes B) Inhibition of ergosterol synthesis C) Inhibition of squalene epoxidase D) Inhibition of 1,3-Beta-glucan synthase ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman presents to the clinic for a recurrent rash that has remitted and relapsed over the last 2 years. The patient states that she has tried multiple home remedies when she has flare-ups, to no avail. The patient is wary of medical care and has not seen a doctor in at least 15 years. On exa... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old man presents with back pain and hematuria. The patient says his back pain gradually onset 6 months ago and has progressively worsened. He describes the pain as moderate, dull and aching, and localized to the lower back and right flank. Also, he says that, for the past 2 weeks, he has been ha... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old man comes to the physician for a 5-month history of progressive bilateral ankle swelling and shortness of breath on exertion. He can no longer walk up the stairs to his bedroom without taking a break. He also constantly feels tired during the day. His wife reports that he snores at night and... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> You are seeing a 4-year-old boy in clinic who is presenting with concern for a primary immune deficiency. He has an unremarkable birth history, but since the age of 6 months he has had recurrent otitis media, bacterial pneumonia, as well as two episodes of sinusitis, and four episodes of conjunctivitis. H... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year-old woman comes for a follow-up prenatal visit at 18 weeks' gestation. At 12 weeks' gestation, ultrasonography showed increased nuchal translucency and pregnancy-associated plasma protein A (PAPP-A) was decreased by 2 standard deviations. Chorionic villus sampling showed a 47, XX karyotype. Duri... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old boy is brought to your office due to nausea and vomiting. He had 4 episodes of non-bloody and non-bilious emesis over the last 24 hours. He denies any diarrhea or changes in his diet; however, his best friend at school recently had viral gastroenteritis and his mother is concerned that he has... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> Two days after hospital admission and surgical treatment for a cut on his right thigh from a sickle, a 35-year-old man has fever, chills, and intense pain. The wound is swollen. He had a similar injury 4 months ago that resolved following treatment with bacitracin ointment and daily dressings. He works on... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman is admitted to the emergency department for 36 hours of intense left-sided back pain that extends into her left groin. She reports that the pain started a day after a charitable 5 km (3.1 mi) marathon. The past medical history is relevant for multiple complaints of eye dryness and dry ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old man comes to the emergency department because of shortness of breath and right-sided chest pain for 3 days. The pain is sharp and worsens with deep inspiration. He has also had a fever and a cough productive of yellow sputum for 5 days. His temperature is 38.1°C (100.5°F), pulse is 85/min, r... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old primipara with no co-morbidities presents at 34 weeks gestation with edema and a moderate headache. Her vital signs are as follows: blood pressure, 147/90 mm Hg; heart rate, 82/min; respiratory rate, 16/min; and temperature, 36.6℃ (97.9℉). The physical examination is significant for a 2+ pit... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is processing a blood sample from a human subject. A reagent is added to the sample and the solution is heated to break the hydrogen bonds between complementary base pairs. This solution is then cooled to allow artificial DNA primers in the solution to attach to the separated strands of th... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old woman presents to the emergency department complaining of nausea, vomiting, and abdominal pain. She has a 10-year history of type I diabetes mellitus treated with lispro and glargine. Upon questioning, she mentions that she stopped taking her insulin 3 days ago due to recent malaise and decr... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A newborn male is evaluated one minute after birth. He was born at 38 weeks gestation to a 28-year-old gravida 3 via vaginal delivery. The patient’s mother received sporadic prenatal care, and the pregnancy was complicated by gestational diabetes. The amniotic fluid was clear. The patient’s pulse is 70/mi... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 49-year-old male presents to his primary care physician for the first time in twelve years. His chief complaint is a new onset of diarrhea, which nothing seems to improve. He first noticed this diarrhea about a month ago. He complains of greasy stools, which leave a residue in his toilet bowl. Review of... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old girl is referred to an oral surgeon after complaining of tooth pain, especially in the upper jaw. A review of her medical history reveals status post-surgical repair of a patent ductus arteriosus when she was 6 years old. At the clinic, her temperature is 37.0ºC (98.6°F), pulse is 90/min, re... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old type 1 diabetic woman who is poorly compliant with her diabetes medications presented to the emergency department with hemorrhage from her nose. On exam, you observe the findings shown in figure A. What is the most likely explanation for these findings? ---- <<Choices:>> A) Cryptococcal infe... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 64-year-old man presents to the emergency department with the complaints of nausea and muscle weakness for the past 24 hours. He further adds that he is significantly aware of his heartbeat. He was diagnosed with type II diabetes mellitus 20 years ago and hypertension 15 years ago for which he is taking... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old woman is admitted to the hospital for progressive bilateral lower extremity weakness and absent deep tendon reflexes. Cerebrospinal fluid analysis shows an elevated protein concentration and a normal cell count. Treatment with plasmapheresis is initiated, after which her symptoms start to im... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A medical research study is beginning to evaluate the positive predictive value of a novel blood test for non-Hodgkin’s lymphoma. The diagnostic arm contains 700 patients with NHL, of which 400 tested positive for the novel blood test. In the control arm, 700 age-matched control patients are enrolled and ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-month-old boy is brought to his pediatrician’s office to be evaluated for new onset seizures and poor weight gain. The patient’s father says he is unable to track with his eyes and is unresponsive to verbal stimuli. The patient is hypotonic on physical exam. Further studies show elevated serum lactate... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 3-year-old girl is brought to the physician by her parents for the evaluation of recurrent episodes of pain in her left wrist and right knee for 4 months. She has not had any trauma to the knee or any previous problems with her joints. She attends daycare. Her mother has rheumatoid ar... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-month study is conducted to assess the relationship between the consumption of natural licorice and the development of hypokalemia. A total of 100 otherwise healthy volunteers are enrolled. Half of the volunteers are asked to avoid licorice and the other half are asked to consume licorice daily, along... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 23-year-old African-American man comes to the physician because of a painless swelling on the left side of his jaw for 2 months. It has been progressively increasing in size and is draining thick, foul-smelling fluid. He does not have fever or weight loss. He had a molar extracted aro... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 69-year-old man presents to the emergency department with shortness of breath that has been worsening over the past month. The patient states that he has had worsening shortness of breath that has progressed to shortness of breath with simple activities and minor exertion. When he was unable to climb th... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old woman, gravida 1, para 1, who gave birth at 39 weeks' gestation via cesarean section under general anesthesia 2 days ago presents with acute chest pain and difficulty breathing. The pregnancy was complicated by hypothyroidism and treated with L-thyroxine. The patient has a history of mild as... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman is brought to the emergency department by EMS after being found naked in a busy downtown square. The patient stated that she is liberating people from material desires and was found destroying objects. Her temperature is 99.5°F (37.5°C), blood pressure is 127/68 mmHg, pulse is 120/min,... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old woman presents to your clinic with complaints of increasing muscle fatigue that worsens after periods of sustained activity. She also reports both ptosis and diplopia that make reading in the late afternoon and evenings difficult. An edrophonium test is performed and is positive, demonstrati... | C |
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