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Answer the following medical question with the correct letter choice: | <<Question:>> While explaining the effects of hypokalemia and hyperkalemia on the cardiac rhythm, a cardiologist explains that the electrophysiology of cardiac tissue is unique. He mentions that potassium ions play an important role in the electrophysiology of the heart, and the resting membrane potential of the cardia... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old man presents to his dermatologist with white scaly papules and plaques on his extensor arms, elbows, knees, and shins. Scaly and flaky eruptions are also present on his ears, eyebrows, and scalp. He describes the lesions as being itchy and irritating. When the scales are scraped away, pinpoi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old man presents with a mass on the central part of his neck. He reports it has been growing steadily for the past 2 weeks, and he has also been experiencing fatigue and recurrent fevers. No significant past medical history. The patient denies any smoking history, or alcohol or recreational drug... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3550-g (7-lb 13-oz) male newborn is delivered at 37 weeks' gestation to a 28-year-old woman. Apgar scores are 9 and 10 at 1 and 5 minutes, respectively. His vital signs are within normal limits. Physical examination shows no abnormalities. Routine neonatal screening tests show mildly elevated TSH concen... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-month-old boy is brought to the physician by his mother because of poor weight gain and irritability since delivery. He is at the 10th percentile for height and below the 5th percentile for weight. Physical examination shows conjunctival pallor. Laboratory studies show: Hemoglobin 11.2 g/dL Mean corpu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 40-year-old woman comes to the physician because of a 3-day history of fever, headaches, and fatigue. She also reports a persistent tingling sensation in her right hand and numbness in her right arm that started this morning. Physical examination shows pallor, mild scleral icterus, an... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old woman comes to the office with a 2-week history of rectal bleeding that occurs every day with her bowel movements. She denies any pain during defecation. Apart from this, she does not have any other complaints. Her past medical history is insignificant except for 5 normal vaginal deliveries.... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old man comes to the physician’s office with jaundice. Liver ultrasound reveals a shrunken liver and biopsy reveals cirrhosis. Hepatitis serologies are below: Anti-HAV: negative HBsAg: negative HBsAb: positive HBeAg: negative Anti-HBe: negative Anti-HBc: negative Anti-HCV: positive The hepatitis... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old Chinese man presents to the office with a complaint of progressive unilateral nasal obstruction for 10 months. Though he was able to tolerate his symptoms at the beginning, he can’t breathe properly through the obstructed nostril anymore. Also, a bloody nasal discharge has started recently t... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 78-year-old man is brought in to the emergency department by ambulance after his wife noticed that he began slurring his speech and had developed facial asymmetry during dinner approximately 30 minutes ago. His past medical history is remarkable for hypertension and diabetes. His temperature is 99.1°F (... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old boy is brought to the physician for recurrent 3–4 minutes episodes of facial grimacing and staring over the past month. He is nonresponsive during these episodes and does not remember them afterward. He recalls a muddy taste in his mouth before the onset of symptoms. One week ago, his brother... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of scientists is studying the mechanism by which the human papillomavirus (HPV) vaccine confers immunity. They observe that during the inoculation of test subjects, mammals with certain viral proteins result in the organism’s antigen-presenting cells (APCs) absorbing the antigen and presenting it ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old woman presents with the complaints of nausea, vomiting, and diarrhea for 5 days. She adds that she has fever and abdominal cramping as well. She had recently attended a large family picnic and describes eating many varieties of cold noodle salads. Her past medical history is insignificant. H... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying biomolecular mechanisms in human cells. A radioactive isotope that is unable to cross into organelles is introduced into a sample of cells. The cells are then fragmented via centrifugation and the isotope-containing components are isolated. Which of the following reactions is m... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 30-year-old man comes to the physician for his annual health maintenance examination. The patient has no particular health concerns. He has a history of bilateral cryptorchidism treated with orchidopexy at 8 months of age. This patient is at increased risk for which of the following? ---- <<Choices:>> A... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old woman comes to the emergency department because of a 2-day history of dark urine, increasing abdominal pain, and a tingling sensation in her arms and legs. She has a history of epilepsy. Her current medication is phenytoin. She is nauseated and confused. Following the administration of hemin... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy is brought to the emergency department by his parents because of fever and recurrent episodes of jerky movements of his extremities for the past 6 hours. Pregnancy and delivery were uncomplicated, and development was normal until the age of 1 year. The parents report that he has had gradu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An obese, 66-year-old woman comes to the physician for a routine health maintenance examination. She feels well but is unhappy about being overweight. She reports that she feels out of breath when walking for more than one block and while climbing stairs. She has tried to lose weight for several years wit... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man comes to the physician for a follow-up examination. One month ago, therapy with lisinopril was initiated for treatment of hypertension. His blood pressure is 136/86 mm Hg. Urinalysis shows a creatinine clearance of 92 mL/min. The patient's serum creatinine concentration is most likely cl... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old woman presents to the emergency department with complaints of intermittent bouts of lower abdominal and pelvic pain over the last week. The pain is primarily localized to the right side and is non-radiating. The patient is not sexually active at this time and is not currently under any medic... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman, gravida 2, para 1, comes to the physician for her initial prenatal visit at 18 weeks’ gestation. She is a recent immigrant from Thailand. Her history is significant for anemia since childhood that has not required any treatment. Her mother and husband have anemia, as well. She has no ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old woman comes to the physician because of increasing blurring of vision in both eyes. She says that the blurring has made it difficult to read, although she has noticed that she can read a little better if she holds the book below or above eye level. She also requires a bright light to look at... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old woman presents with esophageal varices, alcoholic cirrhosis, hepatic encephalopathy, portal hypertension, and recent onset confusion. The patient’s husband does not recall her past medical history but knows her current medications and states that she is quite disciplined about taking them. C... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old woman is brought to the emergency department 8 hours after the sudden onset of shortness of breath and pleuritic chest pain. She has cystic fibrosis and, during the past year, has had 4 respiratory exacerbations that have required hospitalization. Current medications include an inhaled bronc... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old diabetic woman is brought to the emergency department with the complaint of multiple bouts of abdominal pain in the last 24 hours. She says that the pain is dull aching in nature, radiates to the back, and worsens with meals. She also complains of nausea and occasional vomiting. She has been... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An 82-year-old woman is admitted to the hospital because of wet gangrene on her right leg. Two days after admission, she becomes increasingly confused and tachypneic. She is intubated and ventilatory support is initiated. Her temperature is 39.6°C (102.5°F), pulse is 127/min, and blood pressure is 83/47 m... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old florist presents to his family physician with nodular lesions on his right hand and forearm. He explains that he got pricked by a rose thorn on his right "pointer finger" where the first lesions appeared, and the other lesions then began to appear in an ascending manner. The physician prescr... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old woman presents to the physician’s office with vaginal bleeding. The bleeding started as a spotting and has increased and has become persistent over the last month. The patient is G3P1 with a history of polycystic ovary syndrome and type 2 diabetes mellitus. She completed menopause 4 years ag... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A student is reviewing the various effects that can be plotted on a dose-response curve. He has observed that certain drugs can work as an agonist and an antagonist at a particular site. He has plotted a particular graph (as shown below) and is checking for other responses that can be measured on the same... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> You are seeing a patient in clinic who recently started treatment for active tuberculosis. The patient is currently being treated with rifampin, isoniazid, pyrazinamide, and ethambutol. The patient is not used to taking medicines and is very concerned about side effects. Specifically regarding the carbohy... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old man visits his primary care physician for a routine health maintenance examination. During the examination, he expresses concerns about not wanting to become a father. He has been sexually active and monogamous with his wife for the past 5 years, and they inconsistently use condoms for contr... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 48-year-old man is brought to the emergency department by his wife 20 minutes after she witnessed him vigorously shaking for about 1 minute. During this episode, he urinated on himself. He feels drowsy and has nausea. He has a history of chronic alcoholism; he has been drinking 15 beers daily for the pa... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 48-year-old man presents early in the morning to the emergency department with a burning sensation in his chest. He describes a crushing feeling below the sternum and reports some neck pain on the left side. Furthermore, he complains of difficulty breathing. Late last night, he had come home and had eat... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 76-year-old man is brought to the emergency room because of one episode of hemoptysis. His pulse is 110/min. Physical examination shows pallor; there is blood in the oral cavity. Examination of the nasal cavity with a nasal speculum shows active bleeding from the posterior nasal cavity. Tamponade with a... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A researcher is studying how arachidonic acid metabolites mediate the inflammatory response in rats. She has developed multiple enzyme inhibitors that specifically target individual proteins in the arachidonic acid pathway. She injects these inhibitors in rats who have been exposed to common bacterial pat... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man comes to the physician because of recurrent episodes of chest pain, shortness of breath, palpitations, and a sensation of choking. The symptoms usually resolve with deep breathing exercises after about 5 minutes. He now avoids going to his graduate school classes because he is worried ab... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old girl with a BMI of 14.5 kg/m2 is admitted to the hospital for the treatment of anorexia nervosa. The patient is administered intravenous fluids and is supplied with 1,600 calories daily with an increase of 200 calories each day. On day 5 of treatment, the patient manifests symptoms of weakne... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman is brought to the emergency department after being involved in a rear-end collision, in which she was the restrained driver of the back car. On arrival, she is alert and active. She reports pain in both knees and severe pain over the right groin. Temperature is 37°C (98.6°F), pulse is ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying human genetics and cell division. A molecule is used to inhibit the exchange of genetic material between homologous chromosomes. Which of the following phases of the cell cycle does the molecule target? ---- <<Choices:>> A) Telophase I B) Metaphase II C) Prophase I D) Anaphase ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying neuronal regeneration. For microscopic visualization of the neuron, an aniline stain is applied. After staining, only the soma and dendrites of the neurons are visualized, not the axon. Presence of which of the following cellular elements best explains this staining pattern? --... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old woman presents to a surgeon with a painless, slowly growing ulcer in the periauricular region for the last 2 months. On physical examination, there is an irregular-shaped ulcer, 2 cm x 1 cm in its dimensions, with irregular margins and crusting over the surface. The woman is a fair-skinned i... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man presents to the physician with profuse watery diarrhea along with fever and crampy abdominal pain. He has been taking an antibiotic course of cefixime for about a week to treat a respiratory tract infection. At the doctor’s office, his pulse is 112/min, the blood pressure is 100/66 mm Hg... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man presents to the emergency department with fever and easy bruising for 3 days. He has had fatigue for 2 weeks. He has no past medical history, and takes no medications. Excessive bleeding from intravenous lines was reported by the nurse. He does not smoke or drink alcohol. The temperature... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-month-old is brought to the physician for a well-child examination. She was born at 39 weeks gestation via spontaneous vaginal delivery and is exclusively breastfed. She weighed 3,400 g (7 lb 8 oz) at birth. At the physician's office, she appears well. Her pulse is 136/min, the respirations are 41/min... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 40-year-old female comes in with several months of unintentional weight loss, epigastric pain, and a sensation of abdominal pressure. She has diabetes well-controlled on metformin but no other prior medical history. She has not previously had any surgeries. On physical exam, her doctor notices brown vel... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-year-old boy is brought to the emergency room by ambulance, accompanied by his kindergarten teacher. Emergency department staff attempt to call his parents, but they cannot be reached. The boy’s medical history is unknown. According to his teacher, the boy was eating in the cafeteria with friends when... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-month-old boy is brought to the physician for a well-child examination. He was born at 38 weeks' gestation and was 48 cm (19 in) in length and weighed 3061 g (6 lb 12 oz); he is currently 60 cm (24 in) in length and weighs 7,910 g (17 lb 7 oz). He can walk with one hand held and can throw a small bal... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old woman presents to the emergency department with right lower quadrant abdominal pain and vaginal spotting. She denies diarrhea, constipation, or blood in the stool. The medical history is unremarkable. She does not use tobacco or drink alcohol. She is sexually active with her husband and uses... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man with a past medical history of diabetes, hypertension, and hyperlipidemia was brought into the emergency department by his wife after she observed him go without sleep for several days and recently open and max out several credit cards. She also reports that he has quit his bartending jo... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman comes to the physician for the evaluation of a 1-month history of dull lower abdominal pain, decreased appetite, and a 5-kg (11-lb) weight loss. Physical examination shows no abnormalities. Pelvic ultrasonography shows bilateral ovarian enlargement and free fluid in the rectouterine po... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old man presents to the clinic with complaints of right wrist pain for 2 days. On examination, redness and swelling were noted on the dorsal aspect of his right wrist. He had pain with extreme range of motion of the wrist. His history includes 2 hip replacements, 2 previous episodes of gout in b... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of investigators have conducted a randomized clinical trial to evaluate the efficacy of adding a novel adenosine A1 receptor agonist to the standard anti-epileptic treatment in reducing the frequency of focal seizures. It was found that patients taking the combination regimen (n = 200) had a lower... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 39-year-old male presents to your office with nodular skin lesions that progress from his right hand to right shoulder. The patient reports that the initial lesion, currently necrotic and ulcerative, developed from an injury he received while weeding his shrubs a couple weeks earlier. The patient denies... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old Latin American woman with no significant past medical history or family history presents to her pediatrician with concerns about several long-standing skin lesions. She notes that she has had a light-colored rash on her chest and abdomen that has been present for the last 2 years. The blood ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old male presents to the emergency room complaining of severe diarrhea. He recently returned from a business trip to Bangladesh. Since returning, he has experienced several loose bloody stools per day that are accompanied by abdominal cramping and occasional nausea and vomiting. His temperature ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An 80-year-old woman seeks evaluation at an outpatient clinic for a firm nodular lump on the left side of her labia. The medical history is notable for hypertension, coronary artery disease status post CABG, and lichen sclerosus of the vagina that was treated with an over-the-counter steroid cream as need... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 75-year-old male is hospitalized for bloody diarrhea and abdominal pain after meals. Endoscopic work-up and CT scan lead the attending physician to diagnose ischemic colitis at the splenic flexure. Which of the following would most likely predispose this patient to ischemic colitis: ---- <<Choices:>> A)... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> Two days following the home birth of her son, a mother brings the infant to the pediatric emergency room because of bilious vomiting. He is unable to pass meconium and his abdomen is distended. Endoscopic biopsy of the proximal colon demonstrates an absence of Meissner’s and Auerbach’s plexi in the bowel ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 49-year-old man comes to the physician because of a 6-month history of increasing fatigue and reduced libido. He also complains of joint pain in both of his hands. His vital signs are within normal limits. Physical examination shows tanned skin and small testes. The second and third metacarpophalangeal ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A general surgery intern is paged to the bedside of a 59-year-old male who underwent a successful sigmoidectomy for treatment of recurrent diverticulitis. The patient's nurse just recorded a temperature of 38.7 C, and relates that the patient is complaining of chills. The surgery was completed 8 hours ago... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man presents to the emergency department with anxiety. The patient states that he is very anxious and has not been able to take his home anxiety medications. He is requesting to have his home medications administered. The patient has a past medical history of anxiety and depression. His curr... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old female returning from a trip to a developing country presents with diarrhea and pain in the abdominal region. Microscopic evaluation of the stool reveals the presence of RBC's and WBC's. The patient reports poor sewage sanitation in the region she visited. The physician suspects a bacterial... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 51-year-old man with a recent diagnosis of peptic ulcer disease currently treated with an oral proton pump inhibitor twice daily presents to the urgent care center complaining of acute abdominal pain which began suddenly less than 2 hours ago. On physical exam, you find his abdomen to be mildly distende... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old male presents to the emergency room following an altercation with patrons at a local grocery store. He is acting aggressively toward hospital staff and appears to be speaking to non-existent individuals. On examination he is tachycardic and diaphoretic. Horizontal and vertical nystagmus is n... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old female presents to her primary care provider complaining of pain and stiffness in her hands and knees. She reports that the stiffness is worse in the morning and appears to get better throughout the day. She is otherwise healthy and denies any recent illness. She does not play sports. On exa... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old man presents for severe abdominal pain and is diagnosed with appendicitis. He is taken for emergent appendectomy. During the procedure, the patient has massive and persistent bleeding requiring a blood transfusion. The preoperative laboratory studies showed a normal bleeding time, normal pro... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 11-year-old girl is brought to the emergency department because of high-grade fever, headache, and nausea for 3 days. She avoids looking at any light source because this aggravates her headache. She has acute lymphoblastic leukemia and her last chemotherapy cycle was 2 weeks ago. She appears lethargic.... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 49-year-old man presents to a new primary care provider complaining of fatigue and occasional fever over the last month. These symptoms are starting to affect his job and he would like treatment. The physician runs a standard metabolic panel that shows elevated AST and ALT. The patient is then tested fo... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old immigrant presents with unintentional weight loss, sleep hyperhidrosis, and a persistent cough. He says these symptoms have been present for quite some time. Upon imaging, many granulomas in the upper lobes are present. It is noted that these apical granulomas have centers of necrosis that a... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old woman comes to the emergency room because of fever and severe left knee pain for the past week. She has not sustained any trauma or injury to the area, nor has she traveled or taken part in outdoor activities in the recent past. She is sexually active with one male partner, and they use cond... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 30-year-old man presents with restlessness and an inability to sit or lie down for the past 2 days. Past medical history is significant for schizophrenia, diagnosed 3 weeks ago and managed medically. Vital signs are a blood pressure of 140/90 mm Hg and a pulse of 96/min. On physical examination, the pat... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> In a previous experiment infecting hepatocytes, it was shown that viable HDV virions were only produced in the presence of a co-infection with HBV. To better understand which HBV particle was necessary for the production of viable HDV virions, the scientist encoded in separate plasmids the various antigen... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old woman presents to her primary care physician for a routine check-up. Physical examination demonstrates asymmetric peripheral neuropathy in her feet. The patient has no previous relevant history and denies any symptoms of diabetes. Routine blood work shows normal results, and she is referred ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old man presents to his primary care physician because he is increasingly troubled by a tremor in his hands. He says that the tremor is worse when he is resting and gets better when he reaches for objects. His wife reports that he has been slowing in his movements and also has difficulty startin... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old man is brought to the emergency department while on vacation with a history of sudden onset vertigo and difficulty walking. He was in normal health since starting his vacation a week ago, but today he is suffering from a loss of balance, mild headache, and has had 5–6 episodes of vomiting ov... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man presents with painless swelling of the neck over the past week. He also has noted severe night sweats, which require a change of clothes and bed linens the next day. His medical history is significant for long-standing hypertension. He received a kidney transplant 6 years ago. His curren... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old man is brought to the emergency department by his neighbor 2 hours after ingesting an unknown substance in a suicide attempt. He is confused and unable to provide further history. His temperature is 39.1°C (102.3°F), pulse is 124/min, respiratory rate is 12/min, and blood pressure is 150/92 ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An 81-year-old man presents to his primary care physician for his yearly exam. His past medical history is significant for osteopenia, nephrolithiasis, and hypertension. His family history is significant for relatives who had early onset kidney failure. He takes occasional acetaminophen and supplemental c... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old man presents to his primary care provider complaining of fatigue, mild headache, and discomfort with chewing for roughly 1 week. Before this, he felt well overall, but now is he is quite bothered by these symptoms. His medical history is notable for hypertension and hyperlipidemia, both cont... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 14-month-old boy is brought to the clinic for evaluation of a rash. The rash started on the face and spread to the trunk. He also had a fever and cough for the past 2 days. His mother says that they recently immigrated from Asia and cannot provide vaccination records. The physical examination reveals a ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old G1P0 woman at 26 weeks gestation presents to the clinic for evaluation of an abnormal glucose tolerance test. She denies any symptoms, but states that she was given 50 g of oral glucose 1 week earlier and demonstrated a subsequent venous plasma glucose level of 156 mg/dL 1 hour later. The vi... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A newborn of a mother with poor antenatal care is found to have a larger than normal head circumference with bulging fontanelles. Physical examination reveals a predominant downward gaze with marked eyelid retraction and convergence-retraction nystagmus. Ultrasound examination showed dilated lateral ventr... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man comes to the physician because of a progressive swelling and pain in his right ring finger for the past 2 days. The pain began while playing football, when his finger got caught in the jersey of another player who forcefully pulled away. Examination shows that the right ring finger is ex... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man comes to the physician for a routine checkup. He has had a progressively increasing swelling on the nape of his neck for 2 months. He does not have a fever or any discharge from the swelling. He underwent a colectomy for colon cancer at the age of 43 years. He has type 2 diabetes mellitu... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man comes to the physician because of a 3-day history of fever, chills, headache, and fatigue. He appears ill. His temperature is 39°C (102.2°F). Analysis of nasal secretions shows infection with an enveloped, single-stranded segmented RNA virus. In response to infection with this pathogen, ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old female, being treated on the medical floor for community-acquired pneumonia with levofloxacin, develops watery diarrhea. She reports at least 9 episodes of diarrhea within the last two days, with lower abdominal discomfort and cramping. Her temperature is 98.6° F (37° C), respiratory rate is... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old girl presents to her primary care physician for a routine check-up. The physician allows the medical student to perform a physical examination. The medical student notes hearing impairment as well as the findings show in Figures A and B. Radiographs show indications of multiple old fractures ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old man comes to the physician because of abdominal pain and foul-smelling, watery diarrhea for several days. He has not had nausea, vomiting, or blood in the stool. He has a history of alcohol use disorder and recently completed a 7-day course of clindamycin for pneumonia. He has not traveled o... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-year-old boy presents to the clinic because of monosymptomatic enuresis for the past month. Urinalysis, detailed patient history, and fluid intake, stool, and voiding diary from a previous visit all show no abnormalities. The parent and child are referred for education and behavioral therapy. Enuresis... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old homeless woman is brought to the emergency department by ambulance 30 minutes after the police found her on the sidewalk. On arrival, she is unresponsive. Her pulse is 76/min, respirations are 6/min, and blood pressure is 110/78 mm Hg. Examination shows cool, dry skin. The pupils are pinpoin... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An infectious disease investigator is evaluating the diagnostic accuracy of a new interferon-gamma-based assay for diagnosing tuberculosis in patients who have previously received a Bacillus Calmette-Guérin (BCG) vaccine. Consenting participants with a history of BCG vaccination received an interferon-gam... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> Several patients at a local US hospital present with chronic secretory diarrhea. Although there are multiple potential causes of diarrhea present in these patients, which of the following is most likely the common cause of their chronic secretory diarrhea? ---- <<Choices:>> A) Lymphocytic colitis B) Medic... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old woman with sickle cell disease and at 39-weeks' gestation is brought to the emergency department in active labor. She has had multiple episodes of acute chest syndrome and has required several transfusions in the past. She has a prolonged vaginal delivery complicated by postpartum bleeding, ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old man is brought by his mother to his pediatrician in order to complete medical clearance forms prior to attending college. During the visit, his mother asks about what health risks he should be aware of in college. Specifically, she recently saw on the news that some college students were kil... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-month old boy, born to immigrant parents from Greece, presents to the hospital with pallor and abdominal distention. His parents note that they recently moved into an old apartment building and have been concerned about their son's exposure to chipped paint from the walls. On physical exam, the patien... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 51-year-old woman comes to the physician because of progressively worsening lower back pain. The pain radiates down the right leg to the lateral side of the foot. She has had no trauma, urinary incontinence, or fever. An MRI of the lumbar spine shows disc degeneration and herniation at the level of L5–S... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old woman comes to the physician because of a 4-month history of progressive pain and stiffness of the fingers of her right hand that is worse at the end of the day. She works as a hair dresser and has to take frequent breaks to rest her hand. She has hypertension, for which she takes hydrochlor... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 51-year-old man presents to his dermatologist because of severe stomatitis and superficial skin erosions over his trunk. His condition started 2 months ago and was unresponsive to oral antibiotics and antiherpetic medications. He has no history of a similar rash. His medical history is remarkable for ty... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old male presents to his primary care physician for a routine check-up. He reports that he is doing well overall without any bothersome symptoms. His past medical history is significant only for hypertension, which has been well controlled with losartan. Vital signs are as follows: T 37.0 C, HR ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old man presents to the emergency department because of pain in the center of his chest that is radiating down his left arm and up the left side of his neck. The pain started suddenly 30 minutes ago while the patient was at work. The patient describes the pain as squeezing in nature, 10/10 in in... | A |
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