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Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old woman presents with right lower quadrant abdominal pain, fatigue, and low-volume diarrhea of intermittent frequency for the past 4 months. She also reports weight loss and believes it to be due to a decreased appetite. She has noticed herself being more "forgetful" and she denies seeing any ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old man with a history of untreated HIV presents with fever, shortness of breath, and a nonproductive cough for the past week. Past medical history is significant for HIV diagnosed 10 years ago and never treated. His most recent CD4+ T cell count was 105/µL. Physical examination reveals bilatera... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 1-week-old male newborn is brought to the physician for a follow-up examination after the results of newborn screening showed an increased serum concentration of phenylalanine. Genetic analysis confirms a diagnosis of phenylketonuria. The physician counsels the patient's family on the recommended dietar... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An American doctor is on an outreach trip to visit local communities in Ethiopia. In one clinic, he found many cases of children ages 2–5 years who have significantly low weight and height for their age. These children also had pale sclerae, distended abdomens, dermatoses, and marked edema in the lower ex... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> Under what physiologic state is the endogenous human analog of nesiritide produced? ---- <<Choices:>> A) Increased external stress B) Increased ventricular stretch C) Increased intracranial pressure D) Increased circulatory volume presenting to the kidneys ---- <<Answer:>> | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old boy is brought to the physician for a well-child examination. His mother says his teachers report him being easily distracted, lagging behind his classmates in most of the subjects, and frequently falling asleep during class. She says that her son has complained of leg pain on multiple occasi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year old man is brought in by ambulance to the emergency department and presents with altered consciousness, confabulation, and widespread rash. He is recognized as a homeless man that lives in the area with a past medical history is significant for traumatic brain injury 4 years ago and chronic gast... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 8-year-old girl is brought to the emergency department by her parents because she complained of very fast heartbeats. The patient has previously been healthy without any childhood illnesses and has not needed to visit a physician in the past 2 years. On examination, the heart rate is 198/min. Further e... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 78-year-old man with advanced lung cancer with metastases to the brain is brought to the physician by his daughter, with whom he lives. The daughter reports that her father's condition has been slowly deteriorating over the past 2 months. His seizures have been poorly controlled despite maximal medical ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old G1P0 mother is in the delivery room in labor. Her unborn fetus is known to have a patent urachus. Which of the following abnormalities would you expect to observe in the infant? ---- <<Choices:>> A) Gastroschisis B) Omphalocele C) Meconium discharge from umbilicus D) Urine discharge from umb... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 44-year-old woman is being treated by her oncologist for metastatic breast cancer. The patient had noticed severe weight loss and a fixed breast mass over the past 8 months but refused to see a physician until her husband brought her in. Surgery is scheduled, and the patient is given an initial dose of ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man presents to the emergency department with chief complaints of abdominal pain, distension, and bloody diarrhea for a day. Abdominal pain was episodic in nature and limited to the left lower quadrant. It was also associated with nausea and vomiting. He also has a history of postprandial ab... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 46-year-old man comes to the physician for routine physical examination. His blood pressure is 158/96 mm Hg. Physical examination shows no abnormalities. Serum studies show a potassium concentration of 3.1 mEq/L. His plasma aldosterone concentration (PAC) to plasma renin activity (PRA) ratio is 47 (N < ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> In a routine medical examination, an otherwise healthy 12-year-old by is noted to have tall stature with a wide arm span and slight scoliosis. Chest auscultation reveals a heart murmur. Transthoracic echocardiography shows an enlarged aortic root and aortic valve insufficiency. Mutations in mutations in f... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-day-old boy is brought to the emergency department by his mother because of a 2-day history of difficulty feeding and multiple episodes of his lips turning blue. He was born at home via spontaneous vaginal delivery and Apgar scores were 7 and 8 at 1 and 5 minutes, respectively. Physical examination sh... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old woman presents to her primary care doctor with her husband. The patient's husband reports that his wife has been acting "funny" ever since she was in a motor vehicle accident 2 months ago. She's been very rude to him, their children, and her friends, often saying inappropriate things. She is... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman presents to a psychiatrist to discuss a recent event in her life. At a social function 2 days back, she met a man who introduced himself as having worked with her at another private company 3 years ago. However, she did not recognize him. She also says that she does not remember workin... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy is brought by his parents to the physician for a fever for the past 2 days. His temperature is 101.3°F (38.5°C). His medical history is significant for sickle cell disease and recurrent infections. A year ago, he underwent spleen scintigraphy with technetium-99m that revealed functional ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old woman presents to the emergency department multiple times over the past 3 months feeling like her chest is about to explode. She has been screened on several occasions for acute coronary syndrome, but each time, her cardiac enzymes have all been within normal limits. She comes into the emerg... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-month-old toddler is brought to a pediatric hematologist by his father. The boy was referred to this office for prolonged neutropenia. He has had several blood tests with an isolated low neutrophil count while hemoglobin, hematocrit, and platelet count is normal. The boy was born at 39 weeks gestati... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old girl is brought to the physician for a routine checkup. She was recently adopted and has never seen a doctor before. The patient's parents state she was very emaciated when they adopted her and noticed she has trouble seeing in the evening. They also noted that she was experiencing profuse fo... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old man presents to the emergency department with vomiting, diarrhea, and abdominal pain 2 hours after eating seafood in a restaurant. He also mentions that immediately after ingestion of the food, he experienced tingling and numbness over the lips and face. On physical examination, his vital si... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman presents with a 3-month history of bloody diarrhea and intermittent abdominal pain. She says that after she has a bowel movement, she still feels as though she needs to go more. She also reports a 10-pound weight loss, significant fatigue, and frequent cravings to chew ice. Her past me... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman presents to the emergency department with severe abdominal and lower back pain. She describes it as intense cramping and states that she experienced severe pain roughly 1 month ago that was similar. The patient's past medical history is non-contributory, and she states that her menses ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> Which of the following factors gives the elastin molecule the ability to stretch and recoil? ---- <<Choices:>> A) Hydroxylation of proline and lysine rich regions B) Cross-links between lysine residues C) Triple helix formation D) Cleavage of disulfide rich terminal regions ---- <<Answer:>> | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 68-year-old woman, otherwise healthy, is admitted to the coronary care unit due to acute ischemic cardiomyopathy. No other significant past medical history. Her vital signs include: pulse 116/min, respiratory rate 21/min, temperature 37.4°C (99.3°F), and blood pressure 160/100 mm Hg. On physical examina... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A goalkeeper of a famous soccer team gives an interview with a health agency regarding his childhood. He describes how when he was a child, he would constantly clear his throat in class and the teachers would write a note to his mother with advice to go see an ENT doctor. He complained of being restless, ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old healthy man presents to his physician to discuss his concerns about developing heart disease. His father, grandfather, and older brother had heart problems, and he has become increasingly worried he might be at risk. He takes no medications and his past medical history is only significant fo... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man comes to the emergency department for pain and swelling of his left knee one day after injuring it while playing soccer. While sprinting on the field, he slipped as he attempted to kick the ball and landed on the anterior aspect of his knee. He underwent an appendectomy at the age of 16 ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 49-year-old woman comes to the physician with a 2-month history of mild abdominal pain, nausea, and several episodes of vomiting. She often feels full after eating only a small amount of food. Abdominal examination shows mild right upper quadrant tenderness and a liver span of 16 cm. Ultrasonography sho... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A pharmaceutical company has created an experimental medication, Drug Z, for patients with relapsing-remitting multiple sclerosis. Drug Z has been deemed to be safe in rats and is nearly ready for human trials. Before initiating a Phase I clinical trial, the company would like to study the medication’s ph... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old homeless male presents with fever and cough. He was found unconscious on the side of the road and was brought to the emergency room. He is noticeably drunk and is unable to answer any questions. On physical exam his temperature is 103°F (40°C), blood pressure is 130/85 mmHg, pulse is 110/min... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old Caucasian male presents complaining of inability to open his mouth. Patient history reveals that he recently injured his foot from an exposed floor nail in his house. This patient's symptoms are likely the result of: ---- <<Choices:>> A) Impaired motor neuron release of ACh B) Impaired motor... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old college student presents to the ED straight from chemistry lab where he ingested an unknown compound. He complains of a headache, and is flushed, tachypneic and tachycardic. Suspecting cyanide poisoning, you administer amyl nitrite which causes which of the following? ---- <<Choices:>> A) O... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 76-year-old man presents to his physician with his daughter for evaluation of memory loss and disorientation that has become progressively worse over the last few years. The patient’s daughter states that the memory loss started with her father forgetting things ''here and there'' and the memory loss ha... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old female student presents to her physician for overall fatigue. She is having a hard time concentrating while studying and feeling tired most of the time. She also has had constipation for more than 3 weeks and rectal bleeding on occasions. She notices she is getting colder and often needs to ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old man is brought to the emergency department because of severe back pain for 2 hours. He describes it as a stabbing pain between his scapulae that is 9 out of 10 in intensity. He has vomited once during this period. He has hypertension and type 2 diabetes mellitus. He has not seen a physician ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man presents to his primary care provider for routine follow-up. He complains of mild fatigue and occasional tingling in both feet. He reports that this numbness and tingling has led to him having 3 falls over the last month. He has had type 2 diabetes mellitus for 23 years and hypertension ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 31-year-old man comes to the emergency department because of acute onset of left flank pain radiating to his inner groin and scrotum for 3 hours. He also had nausea and one episode of hematuria. His only medication is a multivitamin. He appears uncomfortable. His temperature is 37°C (... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old female teacher presents to the clinic with complaints of discoloration of the skin around the right ankle accompanied by itching. She began noticing it a month ago and the pruritus worsened over time. She also has some pain and swelling of the region every night, especially on days when she ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man comes to the physician because of a 2-month history of episodes of shortness of breath, lightheadedness, and palpitations. During the examination, he reports the onset of one such episode. His pulse is 170/min and regular, respirations are 22/min, and blood pressure is 100/65 mm Hg. An E... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old man comes to the physician because he believes he has low testosterone. He states that he is embarrassed at his lack of musculature, despite lifting weights twice daily. Every day, he drinks a gallon of milk and several protein shakes in addition to 3 large meals. He is convinced that his fe... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> Clinical study looks at the effect of childhood exposure of 2nd-hand smoking on the incidence of bronchogenic adenocarcinoma (BA). Study of 100 subjects (50 exposed to childhood 2nd-hand smoking and 50 healthy controls with no childhood exposure) involves monitoring the lifetime incidence of BA data from ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> Two patients are vaccinated for poliomyelitis. Patient A receives the Sabin oral vaccine, and Patient B receives the Salk intramuscular vaccine. Six weeks after their initial vaccinations, which of the following would be the greatest difference regarding these two patients? ---- <<Choices:>> A) Patient A ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old woman comes to the physician because of dizziness and intermittent episodes of heart palpitations for 5 days. During this time, she has also had one episode of syncope. An ECG shows absence of P waves and irregular RR intervals. Treatment with an antiarrhythmic drug is initiated. The effect ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 53-year-old woman presents to her primary care physician in order to discuss the results of a biopsy. Two weeks ago, her mammogram revealed the presence of suspicious calcifications in her right breast, and she subsequently underwent biopsy of these lesions. Histology of the lesions revealed poorly cohe... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A graduate student is developing the research design for a current project on the detection of ovarian tumor markers in mice. The main method requires the use of chromogenic substrates, in which a reaction may be interpreted according to an enzyme-mediated color change. The detection of which of the subst... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy is brought to the physician because of a 6-day history of gradually worsening left knee pain. The pain is exacerbated by movement and kneeling. There is no pain at rest and no history of trauma to the knee. He is concerned because his soccer tryouts are in a few days. Vital signs are wit... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old teenager presents to the clinic with her parents complaining of headaches and loss of vision which began insidiously 3 months ago. She describes her headaches as throbbing, mostly on her forehead, and severe enough to affect her daily activities. She has not experienced menarche. Past medica... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A healthy 31-year-old woman comes to the physician because she is trying to conceive. She is currently timing the frequency of intercourse with at-home ovulation test kits. An increase in the levels of which of the following is the best indicator that ovulation has occurred? ---- <<Choices:>> A) Estrogen ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old man presents with a 2-month history of increasing lethargy, frequent upper respiratory tract infections, and easy bruising. Past medical history is unremarkable. The patient reports a 14-pack-year smoking history and says he drinks alcohol socially. No significant family history. His vital s... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy is brought to the physician for evaluation of delayed onset of speech. Over the past year, he has also had recurrent dizziness and three episodes of syncope. Examination of the ears shows clear auditory canals and intact tympanic membranes with normal light reflexes. Visual reinforcement ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old man is brought to the emergency department 20 minutes after losing control over his bicycle and colliding with a parked car. The handlebar of the bicycle hit his lower abdomen. On arrival, he is alert and oriented. His pulse is 90/min, respirations are 17/min and blood pressure is 110/70 mm ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> Four days after admission to the hospital for acute pancreatitis, a 41-year-old man develops hypotension and fever. His temperature is 39.1°C (102.3°F), pulse is 115/min, and blood pressure is 80/60 mm Hg. Physical examination shows warm extremities, asymmetric calf size, and blood oozing around his IV si... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old man with a history of hypertension presents to his primary care physician for a headache and abdominal pain. His symptoms began approximately 1 week ago and have progressively worsened. He describes his headache as pressure-like and is mildly responsive to ibuprofen. His abdominal pain is lo... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old woman comes to the physician because of a 1-week history of nausea and vomiting. She has not had fever, abdominal pain, diarrhea, or vaginal bleeding. She does not remember the date of her last menstrual period. She uses oral contraceptive pills but occasionally forgot to take them. She had ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old man with chronic kidney disease presents for significant back pain that has gotten worse in the past 2 days. On exam, the patient has a moderate kyphosis with decreased range of motion of the spine secondary to pain. The patient has no neurologic deficits but is in severe pain. Lab work reve... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman brought to the emergency department because of a 1-week history of palpitations and shortness of breath. She has congestive heart failure. Current medications include furosemide, lisinopril, and atenolol. Her pulse is 124/min and irregularly irregular, and blood pressure is 110/70 mm H... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man presents to the physician with pain in his right calf over the last 3 months. He mentions that the pain typically occurs after he walks approximately 100 meters and subsides after resting for 5 minutes. His medical history is significant for hypercholesterolemia, ischemic heart disease, ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying mechanisms of urea excretion in humans. During the experiment, a healthy male volunteer receives a continuous infusion of para-aminohippurate (PAH) to achieve a PAH plasma concentration of 0.01 mg/mL. A volume of 1.0 L of urine is collected over a period of 10 hours; the urine ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old student presents to the college health clinic with a 1-week history of fever, sore throat, nausea, and fatigue. He could hardly get out of bed this morning. There are no pets at home. He admits to having recent unprotected sex. The vital signs include: temperature 38.3°C (101.0°F), pulse 72/... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old man presents to the emergency department after an automobile accident. His vitals have significantly dropped since admission. Upon examination, his abdomen is slightly distended, the ribs on the right side are tender and appear broken, and breath sounds are diminished at the base of the rig... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old woman comes to the physician because of a 3-month history of worsening chest pain and breathlessness during exercise. She has no history of serious illness and takes no medications. Vital signs are within normal limits. Auscultation of the chest shows a murmur in the 2nd right intercostal sp... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old woman with type 2 diabetes mellitus is brought to the physician because of a 3-week history of nausea, abdominal pain, and confusion. She has a history of gastroesophageal reflux disease treated with over-the-counter antacids. She does not smoke or drink alcohol. Her only medication is metfo... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-week-old male newborn is brought to the physician by his 33-year-old mother for a well-child examination. He was born at term and delivered at home because his parents wanted a natural childbirth. The mother did not receive prenatal care. She has no history of serious illness and takes no medications.... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old woman comes to the physician because of a 4-month history of crampy abdominal pain, recurrent watery diarrhea, and a 2.5-kg (5.5-lb) weight loss. Her husband has noticed that after meals, her face and neck sometimes become red, and she develops shortness of breath and starts wheezing. Examin... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man presents to his primary care physician with 2 weeks of headache, palpitations, and excessive sweating. He has no past medical history and his family history is significant for clear cell renal cell carcinoma in his father as well as retinal hemangioblastomas in his older sister. On prese... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old male presents to the emergency department after a knife fight. He initially refused to come to the hospital, but one of his wounds overlying the right antecubital fossa would not stop bleeding. Vitals include: BP 90/65, HR 115, and RR 24. He reports that he is light-headed and having visual ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old woman is admitted to the intensive care unit after surgery following a motor vehicle collision. She has received a total of four units of packed red blood cells. Physical examination shows dry mucous membranes and flat neck veins. Serum studies show a creatinine of 2.1 mg/dL and urine micros... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old man is brought to the emergency department 30 minutes after being involved in a motor vehicle collision. The patient was on his way to work before he lost control of his car and crashed into a tree. On arrival, the patient appears weak and lethargic. He has pain in his abdomen. His temperatu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 41-year-old woman presents with occasional dyspareunia and vaginal bleeding after a sexual encounter. She is in a monogamous relationship and uses oral contraception. She does not have a family history of gynecologic malignancies. She has smoked 1 pack of cigarettes per day for 15 years and drinks sever... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man is brought to the emergency department because of severe right shoulder pain and inability to move the shoulder for the past 30 minutes. The pain began after being tackled while playing football. He has nausea but has not vomited. He is in no apparent distress. Examination shows the righ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old man is found lying unconscious on the floor of his room by his roommate. The paramedics arrive at the site and find him unresponsive with cold, clammy extremities and constricted, non-reactive pupils. He smells of alcohol and his vital signs show the following: blood pressure 110/80 mm Hg, p... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old woman presents with a complaint of low energy levels for the past 6 months. She feels as if she has no energy to do anything and has lost interest in photography, which she was previously passionate about. Feelings of hopelessness occupy her mind and she can no longer focus at work. She says... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 11-year-old girl presents to her pediatrician for evaluation of asymmetry that was detected during routine school screening. Specifically, she was asked to bend forwards while the school nurse examined her back. While leaning forward, her right scapula was found to be higher than her left scapula. She ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of investigators is studying the effects of aberrant protein isoforms on the pathogenesis of lung cancer. They observe that three protein isoforms are transcribed from the same 30,160 base-pair-long DNA segment on chromosome 13q. The canonical protein has a primary peptide sequence of 1186 amino a... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old woman comes to the physician because of paresthesias and weakness in her left leg for one year. Her symptoms have become progressively worse during this period and have led to some difficulty walking for the past month. She has had frequent headaches for the past 4 months. She has a history ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> The rapid response team is called for a 74-year-old woman on an inpatient surgical floor for supraventricular tachycardia. The patient had surgery earlier in the day for operative management of a femur fracture. The patient has a history of hypertension, atherosclerosis, type 2 diabetes, and uterine cance... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman presents with exertional dyspnea and fatigue for the past 3 months. Her past medical history is significant for multiple episodes of mild diarrhea for many years, which was earlier diagnosed as irritable bowel syndrome (IBS). She denies any current significant gastrointestinal symptoms... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman in graduate school comes to the physician for recurrent headaches. The headaches are unilateral, throbbing, and usually preceded by blurring of vision. The symptoms last between 12 and 48 hours and are only relieved by lying down in a dark room. She has approximately two headaches per ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old woman comes to the physician because of pain and swelling of her left leg over the past 24 hours. The pain is worse while walking and improves when resting. Seven months ago, she was diagnosed with a pulmonary embolism and was started on warfarin. Anticoagulant therapy was discontinued 1 mon... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old woman visits her general practitioner with left ear pain and fever. She complains of multiple episodes of respiratory infection including bronchitis, laryngitis, and sinusitis. She was diagnosed with systemic lupus erythematosus with nephritis 8 months ago and was placed on oral prednisone. ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 16-year-old girl with celiac disease is brought to the physician because of a 1-week history of generalized weakness and tingling around her mouth and in her fingertips. She also complains of abdominal cramps and nausea. In addition to following a gluten-free diet, she has been following a vegan diet fo... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old girl is brought to the physician because of vaginal bleeding for 2 days. There is no personal or family history of serious illness. She is at the 95th percentile for height and at the 90th percentile for weight. Examination shows enlarged breasts, and the areola and papilla have formed a seco... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator studying disorders of hemostasis performs gene expression profiling in a family with a specific type of bleeding disorder. These patients were found to have abnormally large von Willebrand factor (vWF) multimers in their blood. Genetic analysis shows that the underlying cause is a mutation... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old Caucasian male presents to your office with bloody diarrhea and epigastric pain that occurs 30 minutes after eating. He has lost 15 pounds in 1 month, which he attributes to fear that the pain will return following a meal. He has a history of hyperlipidemia and myocardial infarction. Physica... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 10-year-old boy is brought to the physician with painful and enlarged lymph nodes in his right axilla that was noticed 5 days ago and has slowly grown bigger. He has had weakness, sweating, and poor appetite during this time. The boy was born at 39 weeks gestation via spontaneous vaginal delivery. He is... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old boy presents with bloody diarrhea. The patient’s mother states that he was fine this morning, but around midday, she received a call from his daycare center stating that the patient had a single bloody bowel movement. His mother states that there have been no recent changes in his diet, altho... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old male presents with several months of fatigue, malaise, dry cough, and occasional episodes of painless hematuria. He recalls having had a sore throat several days prior to the onset of these symptoms that resolved without antibiotics. Physical exam is remarkable for diffusely coarse breath so... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 68-year-old man comes to the physician for a wellness visit. Physical examination shows an enlarged and nodular prostate. Laboratory studies show elevated levels of prostate-specific antigen. A prostate biopsy confirms the diagnosis of prostate cancer and a radical prostatectomy is planned. This patient... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An otherwise healthy 15-month-old boy is brought to the emergency department by his mother 1 hour after having a single episode of generalized tonic-clonic seizure, which stopped spontaneously after 1 minute. He was sleepy initially but is now awake and alert. His mother reports that he has had a fever an... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 53-year-old man is brought to the emergency department 45 minutes after the onset of a severe headache. He returned from a vacation in the mountains 4 days ago, during which he went swimming in a freshwater lake. On arrival, he is confused. His temperature is 39°C (102.2°F) and blood ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 10-year-old girl is brought to the physician because of itching of the vulva and anal region for the past 2 weeks. She has difficulty sleeping because of the itching. Physical examination shows excoriation marks around the vulva and perianal region. There is minor perianal erythema, but no edema or fiss... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old female who recently immigrated to the United States presents to the community health clinic for episodes of disrupted vision. She is concerned because she knows several people from her hometown who went blind after having these episodes. Over the past several months, she also has developed i... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 10-day-old male newborn is brought to the physician by his mother because of difficulty feeding and frequent nonbilious vomiting. His stool is soft and yellow-colored. The pregnancy was complicated by polyhydramnios and results from chorionic villus sampling showed a 47, XY, +21 karyotype. Physical exam... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old sexually active man complains of painless growths on his penis. He is worried that he might have transmitted them to his girlfriend. Biopsy shows squamous cells with perinuclear cytoplasmic vacuolization, nuclear enlargement, and koilocytes. The doctor treats the patient by chemically ablati... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old woman is brought to the emergency department by her husband because of slurred speech and left facial droop for the past 30 minutes. During this period, she has also had numbness on the left side of her face. She has never had such an episode before. She has hypertension, hypercholesterolemi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old white woman comes to the physician because of a 6-month history of lower abdominal pain. She has also had multiple episodes of loose stools with blood during this period. She has had painful bowel movements for 1 month. Over the past year, she has had a 10-kg (22-lb) weight loss. She was tre... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 44-year-old woman comes to the physician with increasingly yellow sclera and pruritus over the past 3 months. She has intermittent right-upper-quadrant pain and discomfort. She has no history of any serious illnesses and takes no medications. Her vital signs are within normal limits. Her sclera are icte... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old woman presents with sudden onset of vertigo, difficulty walking, sensory changes on the left side of her face and the right side of the body, and left facial drooping. Her past medical history is significant for hypertension and hypercholesterolemia. On physical examination, there is left-si... | B |
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