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Answer the following medical question with the correct letter choice: | <<Question:>> A 53-year-old woman comes to the physician because of a 3-month history of intermittent severe left neck, shoulder, and arm pain and paresthesias of the left hand. The pain radiates to the radial aspect of her left forearm, thumb, and index finger. She first noticed her symptoms after helping a friend set... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old male is admitted to the hospital after a motor vehicle accident in which he sustained a right diaphyseal femur fracture. His medical history is significant for untreated hypertension. He reports smoking 1 pack of cigarettes per day and drinking 1 liter of bourbon daily. On hospital day 1, he... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old male comes to the clinic to initiate care with a new physician. He has no complaints at this time. When taking his history, the patient says his medical history is notable for diabetes and hypertension both of which are well managed on his medications. His medications are metformin and lisin... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old man comes to the physician because of a 2-month history of severe chest discomfort. The chest discomfort usually occurs after heavy meals or eating in the late evening and lasts several hours. He has nausea sometimes but no vomiting. He has also had an occasional nighttime cough during this ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year-old man presents to his primary care physician because he has been experiencing episodes where he wakes up at night gasping for breath. His past medical history is significant for morbid obesity as well as hypertension for which he takes lisinopril. He is diagnosed with sleep apnea and prescribe... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy presents to the emergency room with difficulty breathing after several days of severe sore throat. Further history reveals that his family immigrated recently from Eastern Europe and he has never previously seen a doctor. Physical exam shows cervical lymphadenopathy with extensive neck e... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old woman with β-thalassemia major comes to the physician with a 1-week history of fatigue. She receives approximately 8 blood transfusions per year; her last transfusion was 1 month ago. Examination shows conjunctival pallor. Her hemoglobin level is 6.5 mg/dL. Microscopic evaluation of a liver ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> Myeloperoxidase (MPO) is a heme-containing molecule that is found in the azurophilic granules of neutrophils. Upon release, the enzyme catalyzes hypochlorous acid production during the phagocytic response. In the setting of pneumonia, which of the following is the end result and clinical significance of t... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 11-year-old male is brought in by ambulance to the emergency department after being a restrained passenger in a motor vehicle accident. His father was driving him to soccer practice when they were hit by a wrong way driver. On presentation, his temperature is 101°F (38.3°C), blood pressure is 100/62 mm... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old homeless man presents to the emergency department with an altered mental status. He is not answering questions. His past medical history is unknown. A venous blood gas is drawn demonstrating the following. Venous blood gas pH: 7.2 PaO2: 80 mmHg PaCO2: 80 mmHg HCO3-: 24 mEq/L Which of the fol... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old girl is brought to the physician by her mother because of a 1-month history of a painful ulcer on her face. She has developed painful sunburns in the past with minimal UV exposure. Examination of the skin shows a 2-cm ulcerated nodule on the left cheek. There are scaly, hyperpigmented papules... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old woman is brought to the physician by her son for an evaluation of cognitive decline. Her son reports that she has had increased difficulty finding her way back home for the last several months, despite having lived in the same city for 40 years. He also reports that his mother has been unabl... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old man is brought to the behavioral health clinic by his roommate. The patient’s roommate says that the patient has been looking for cameras that aliens planted in their apartment for the past 2 weeks. Approximately 3 months prior to the onset of this episode, the roommate says the patient stop... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old woman presents with diplopia. She says that she has been experiencing drooping of her eyelids and severe muscle weakness. She reports that her symptoms are worse at the end of the day. Which of the following additional findings would most likely be seen in this patient? ---- <<Choices:>> A) ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old man presents to the primary care clinic to establish care. He has not seen a physician for many years. He has no complaints or concerns but, on further questioning, does have some vague abdominal discomfort. He has no known past medical history and takes no medications. His social history is... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An 8-year-old boy presents with a limp favoring his right leg. The patient’s mother noticed he had been limping without complaint for the past 6 months. Past medical history is significant for the flu last year. No current medications. All immunizations are up to date. The vital signs include: temperature... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old female is brought to the emergency department with an acute onset of weakness in her left hand that started 3 hours ago. She has not had numbness or tingling of the hand. Other than recent episodes of blurry vision and headaches, her medical history is unremarkable. She has one daughter who ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old man is undergoing a bone marrow transplantation for treatment of a non-Hodgkin lymphoma that has been refractory to several rounds of chemotherapy and radiation over the past 2 years. He has been undergoing a regimen of cyclophosphamide and total body irradiation for the past several weeks i... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old woman comes to the physician because of a 2-month history of a lump on her neck and a 1-week history of hoarseness. Examination shows a 3-cm, firm, non-tender nodule on the anterior neck. Further evaluation confirms a thyroid malignancy, and she undergoes thyroidectomy. Histopathologic exami... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old woman is brought to the emergency department following a syncopal episode. Earlier in the day, the patient had multiple bowel movements that filled the toilet bowl with copious amounts of bright red blood. Minutes later, she felt dizzy and lightheaded and collapsed into her daughter's arms. ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old man who works in a shipyard presents with a sharp pain in his left big toe for the past 5 hours. He says he has had this kind of pain before a few days ago after an evening of heavy drinking with his friends. He says he took acetaminophen and ibuprofen for the pain as before but, unlike the ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator studying epigenetic mechanisms isolates histone proteins, the structural motifs involved in DNA binding and regulation of transcription. The peptide bonds of histone proteins are hydrolyzed and one type of amino acid is isolated. At normal body pH, this amino acid has a net charge of +1 . ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-month-old boy is brought to a pediatrician by his parents for his first visit after they adopt him from a European country. His parents are concerned about the boy’s short episodes of shaking of his arms and legs; they believe it might be epilepsy. They also note that the child is less responsive than... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman comes to her primary care physician because of an irritating sensation in her nose. She noticed recently that there seems to be a lump in her nose. Her past medical history is significant for pain that seems to migrate around her body and is refractory to treatment. She has intermitten... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man is brought to the emergency department after a witnessed tonic-clonic seizure. His wife says he has had a persistent dry cough for 6 months. During this time period, he has also had fatigue and a 4.5-kg (10-lb) weight loss. The patient has no history of serious illness and does not take ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old soldier sustains a gunshot wound to the left side of the chest during a deployment in Syria. The soldier and her unit take cover from gunfire in a nearby farmhouse, and a combat medic conducts a primary survey of her injuries. She is breathing spontaneously. Two minutes after sustaining the ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old boy is brought to the emergency department by ambulance after suddenly losing consciousness while playing in a soccer tournament. The patient has had 2 episodes of syncope without a discernable trigger over the past year. He has been otherwise healthy. His father died suddenly at the age of ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old man presents after an episode of severe left ankle pain. The pain has resolved, but he decided to come in for evaluation as he has had pain like this before. He says he has experienced similar episodes of intense pain in the same ankle and his left knee in the past, which he associates with ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-year-old boy is presented to a pediatric clinic by his mother with complaints of fever, malaise, and cough for the past 2 days. He frequently complains of a sore throat and has difficulty eating solid foods. The mother mentions that, initially, the boy’s fever was low-grade and intermittent but later ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 1-year-old male with a history of recurrent pseudomonal respiratory infections and steatorrhea presents to the pediatrician for a sweat test. The results demonstrate a chloride concentration of 70 mEq/L (nl < 40 mEq/L). Which of the following defects has a similar mode of inheritance as the disorder exp... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old woman comes to the emergency department because of sharp chest pain and shortness of breath for 1 day. Her temperature is 37.8°C (100°F), pulse is 110/min, respirations are 30/min, and blood pressure is 86/70 mm Hg. CT angiography of the chest shows a large embolus at the right pulmonary art... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> You have been entrusted with the task of finding the causes of low birth weight in infants born in the health jurisdiction for which you are responsible. In 2017, there were 1,500 live births and, upon further inspection of the birth certificates, 108 of these children had a low birth weight (i.e. lower t... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 63-year-old woman comes to the physician for a follow-up examination. She has had numbness and burning sensation in her feet for 4 months. The pain is worse at rest and while sleeping. She has hypercholesterolemia and type 2 diabetes mellitus. Current medications include insulin, metformin, and atorvast... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An 87-year-old man comes to the physician because of progressive involuntary urine dribbling over the past two years. He has to use the restroom more frequently than he used to and feels like he cannot fully empty his bladder. Physical examination shows a palpable suprapubic mass. An ultrasound image of t... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old woman, gravida 1, para 0, at 10 weeks' gestation comes to the physician because of a rash on her upper arm that appeared 3 days ago. She has also had headaches and muscle aches for 1 day. She went on a camping trip in Maine 10 days ago. Her temperature is 39°C (102.2°F). A photograph of her ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator studying immune-mediated pulmonary damage performs an autopsy on a bilateral lung transplant recipient who died of hypercapnic respiratory failure. The patient underwent lung transplantation for idiopathic pulmonary fibrosis. Microscopic examination of the lung shows diffuse eosinophilic s... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-month-old male infant from a consanguineous marriage presents with severe sunburns and freckling in sun exposed areas. The mother explains that the infant experiences these sunburns every time the infant goes outside despite applying copious amounts of sunscreen. Which of the following DNA repair mech... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 63-year-old woman comes to the physician because of diarrhea and weakness after her meals for 2 weeks. She has the urge to defecate 15–20 minutes after a meal and has 3–6 bowel movements a day. She also has palpitations, sweating, and needs to lie down soon after eating. One month ago, she underwent a d... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old girl comes to her physician with blurred vision upon awakening for 3 months. When she wakes up in the morning, both eyelids are irritated, sore, and covered with a dry crust. Her symptoms improve after she takes a hot shower. She is otherwise healthy and takes no medications. She does not we... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old woman presents with acute onset fever and chills for the past hour. She mentions earlier in the day she felt blue, so she took some St. John’s wort because she was told by a friend that it helps with depression. Past medical history is significant for hypertension, diabetes mellitus, and dep... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 61-year-old Caucasian woman comes to the physician for a routine health maintenance examination. She feels well. She had a normal mammography 10 months ago and a normal serum lipid profile 3 years ago. Two years ago, a pap smear and testing for human papillomavirus were performed and were negative. She ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 20-year-old woman comes to her physician because of pain during sexual intercourse. She recently became sexually active with her boyfriend. She has had no other sexual partners. She is frustrated because she has consistently been experiencing a severe, sharp vaginal pain on penetratio... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old man is brought to the emergency department because of weakness, headache, and vomiting for 40 minutes. He is an amateur chef and his symptoms started 10 minutes after he ingested pufferfish that he had prepared. On arrival, he is lethargic. His temperature is 37°C (98.6°F), pulse is 120/min,... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of scientists studies the effects of cytokines on effector cells, including leukocytes. They observe that interleukin (IL)–12 is secreted by antigen-presenting cells in response to bacterial lipopolysaccharide. Which of the following responses will a CD4+ T cell produce when it is exposed to this ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old woman presents to the emergency department with pain in her right knee. She states that the pain started last night and rapidly worsened, prompting her presentation for care. The patient has a past medical history of rheumatoid arthritis and osteoarthritis. Her current medications include co... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An 11-year-old boy presents with a 2-day history of uncontrollable shivering. During admission, the patient’s vital signs are within normal limits, except for a fluctuating body temperature registering as low as 35.0°C (95.0°F) and as high as 40.0°C (104.0°F), requiring alternating use of cooling and warm... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-month-old girl is brought to the emergency department because of a 3-day history of fever, irritability, and discharge from her right ear. She had an episode of ear pain and fever three weeks ago. Her parents did not seek medical advice and the symptoms improved with symptomatic treatment. There is no... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old boy is brought to the physician with complaints of an ataxic gait and hearing deficits for the past few days. His parents also reported a history of tonic gaze deviation on the right side and the spontaneous remission of a similar episode 6 months ago. His temperature is 37°C (98.6°F), pulse... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 75-year-old male is diagnosed with advanced metastatic prostate cancer. After further evaluation and staging, the patient is started on flutamide therapy. Addition of which of the following medications to this patient’s medication regimen would be of greatest benefit in the treatment of this patient’s c... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old man comes to the physician because of a persistent tingling sensation in the right side of his face. The sensation began after he underwent an extraction of an impacted molar 2 weeks ago. Examination shows decreased sensation of the skin over the right side of the mandible, chin, and the ant... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old male presents with his parents to a pediatrician for a new patient visit. The child was recently adopted and little is known about his prior medical or family history. The parents report that the child seems to be doing well, but they are concerned because the patient is much larger than any ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old woman is evaluated for dry cough, shortness of breath, and chest tightness which occur episodically 1–2 times per week. She notes that she develops significant shortness of breath when running, especially during cool weather. She also says she has 1 episode of coughing attacks during the nig... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old boy is brought to the physician because of swelling of his face and legs for 5 days. He immigrated to the United States from Korea with his family 10 years ago. He has been healthy except for an episode of sore throat 2 weeks ago. His younger sister has type 1 diabetes mellitus. His temperat... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man comes to the physician because of fatigue and joint pain for 8 months. He has pain in both knees, both elbows, and diffuse muscle pain. He does not have dyspnea. He also had several episodes of a nonpruritic rash on his lower extremities. Eight years ago, the patient was diagnosed with h... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 46-year-old homeless man was found wandering aimlessly in the supermarket. On examination, he is confused and said that the President appointed men to kill him because he is disclosing state secrets to extraterrestrial organisms. The man also has horizontal nystagmus and an ataxic gait. What is the most... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 30-year-old man comes to the physician because of an episode of bloody vomiting this morning and a 1-week history of burning upper abdominal pain. Two weeks ago, he sustained a head injury and was in a coma for 3 days. An endoscopy shows multiple, shallow hemorrhagic lesions predominantly in the gastric... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old medical student comes to the physician for a chest x-ray to rule out active pulmonary tuberculosis. He needs a medical and radiological report before starting a medical internship in South Africa. He has no history of serious illness and does not complain of any symptoms. He has smoked 1 pac... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old woman presents to her physician for a routine checkup. She is in good health and has no complaints. Past medical history is significant for type 2 diabetes mellitus and obesity. She recently started metformin and is tolerating the mild side effects, but her fasting blood glucose levels range... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old primigravid woman comes to the emergency department because of a 12-hour history of lower abdominal pain and vaginal bleeding. She also had nausea and fatigue for the past 3 weeks. Her last menstrual period was 8 weeks ago. Prior to that, her menses occurred regularly at 30-day intervals and... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old man presents with a 3-day history of cough and fever. He says that he recently became a factory worker in a huge plant that is involved in the polyvinyl chloride (PVC) polymerization process. Because he has heard about occupational diseases specifically related to this particular industry, h... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 29-year-old African-American male comes to the physician with a 2-week history of progressive fatigue and shortness of breath on exertion. Last week he noticed that his eyes were gradually turning yellow and his urine was dark. He has a family history of type II diabetes. He denies ch... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman is admitted to the intensive care unit (ICU) with hematemesis and shock. Five days ago she had a severe fever 40.0℃ (104.0℉), retro-orbital pain, nausea, and myalgias. The high temperatures decreased over a few days, but she developed severe abdominal pain and bleeding gums. A single e... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy is brought to the emergency department after he vomited and said he was having double vision in school. He also says that he has been experiencing morning headaches, nausea, and dizziness over the last month. He has no past medical history and is not taking any medications. Physical exam... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 16-year-old boy is brought to the emergency department following a car accident in which he suffered multiple injuries. He is accompanied by his mother. She reports that his medical history is notable only for recurrent sinusitis and otitis as a child. He lost a significant amount of blood from the acci... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> Three hours after undergoing a total right hip replacement, a 71-year-old woman has tingling around the lips and numbness in her fingertips. Her surgery was complicated by unintentional laceration of the right femoral artery that resulted in profuse bleeding. She appears uncomfortable. Examination shows a... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old man presents to the office for evaluation of a lesion on his upper arm that appeared a few months ago and has not healed. A patient appears healthful but has a history of cardiovascular disease. He states that his friend at the industrial ammunition factory where he works told him he should ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 30-year-old man is brought to the emergency department with complaints of fevers to 39.0℃ (102.2℉) and diarrhea for the past 12 hours. There is no history of headaches, vomiting, or loss of consciousness. The past medical history is unobtainable because the patient recently immigrated from abroad and ha... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 79-year-old woman is brought to the emergency department by her husband 20 minutes after losing consciousness. She was walking briskly with her husband when she collapsed suddenly. Her husband says that she regained consciousness after 1 minute. She has had episodes of mild chest pain for the past 2 mon... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A researcher is studying receptors that respond to epinephrine in the body and discovers a particular subset that is expressed in presynaptic adrenergic nerve terminals. She discovers that upon activation, these receptors will lead to decreased sympathetic nervous system activity. She then studies the int... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old man comes to the emergency department because of a dry mouth and blurred vision for the past 30 minutes. Prior to this, he was on a road trip and started to feel nauseous, dizzy, and fatigued, so his friend gave him a drug that had helped in the past. Physical examination shows dry mucous me... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An inconsolable mother brings her 2-year-old son to the emergency room after finding a large amount of bright red blood in his diaper, an hour ago. She states that for the past week her son has been having crying fits while curling his legs towards his chest in a fetal position. His crying resolves either... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old man is brought to the emergency department by police for abnormal behavior in a mini-market. The patient was found passed out in the aisle, and police were unable to arouse him. The patient has a past medical history of alcohol abuse and is not currently taking any medications according to h... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An 8-year-old boy with asthma is brought to the physician because of a 2-week history of facial pain and congestion. His mother states that the nasal discharge was initially clear, but it has become thicker and more purulent over the last week. He has tried multiple over-the-counter oral decongestants and... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 76-year-old woman is brought to the physician because of lesions on her left arm. She first noticed them 3 months ago and they have grown larger since that time. She has not had any pain or pruritus in the area. She has a history of invasive ductal carcinoma of the left breast, which was treated with ma... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 39-year-old female presents to the clinic with the complaints of dry skin for a few months. She adds that she also has constipation for which she started eating vegetables and fruits but with no improvement. She lives with her husband and children who often complain when she turns the air conditioning t... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man with a past medical history of previous myocardial infarction, angina, hypertension, hyperlipidemia, diabetes mellitus, peripheral vascular disease, and below knee amputation has developed new chest pain. His medication includes insulin, hydrochlorothiazide, lisinopril, metoprolol, daily... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A newborn infant is born at 41 weeks gestation to a healthy G1P0 mother. The delivery was complicated by shoulder dystocia. The infant is in the 89th and 92th percentiles for height and weight, respectively. The mother's past medical history is notable for diabetes mellitus and obesity. Immediately after ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> Activation of the renin-angiotensin-aldosterone system yields a significant physiological effect on renal blood flow and filtration. Which of the following is most likely to occur in response to increased levels of Angiotensin-II? ---- <<Choices:>> A) Increased renal plasma flow, decreased filtration frac... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old woman presents to her family physician because of sinusitis and nasal drainage for 3 months. The nasal drainage is purulent and occasionally hemorrhagic. She has only temporary improvement after trying multiple over the counter medications. Over the last 2 weeks, she also has fatigue and joi... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 64-year-old male presents to the emergency room complaining of chest pain. He reports a pressure-like sensation over his sternum that radiates into his jaw. The pain came on suddenly 2 hours ago and has been constant since then. His past medical history is notable for a stable abdominal aortic aneurysm,... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 69-year-old woman is rushed to the emergency room by her daughter after she found her unconscious. Bruises are visible on the patient’s torso and limbs, and it is evident that she has epistaxis. Her daughter says that the patient was diagnosed with immune thrombocytopenic purpura at 61 years of age and ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old girl is admitted to the hospital with a one-day history of acute abdominal pain and vomiting. She also has a two-day history of fever, headache, and neck pain. Her immunizations are up-to-date. She is confused and oriented only to place and person. Her temperature is 39.7°C (103.5°F), pulse i... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 48-year-old woman comes to the physician because of a 6-month history of muscle stiffness, myalgia, and a 7-kg (15-lb) weight gain. Her last menstrual period was 4 months ago. Physical examination shows cold, dry skin, and proximal muscle weakness. Deep tendon reflexes are 2+ bilaterally, with delayed r... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 73-year-old man presents to the emergency department with acute substernal chest pain that began a few hours ago. The pain is described as a “pressure” that radiates to his left arm. His past medical history is significant for hypertension and hyperlipidemia. He is on chlorthalidone for his hypertension... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old woman is brought to the emergency department for a severe throbbing headache, nausea, and photophobia for 3 hours. She has severe occipital pain and chest tightness. Prior to onset of symptoms, she had attended a networking event where she had red wine and, shortly after, a snack consisting ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of scientists is verifying previous research on DNA replication. The diagram below illustrates the theoretical DNA replication process in bacteria such as E. coli. Which of the following enzymes would need to be decreased to prevent the removal of RNA primers formed in the lagging strand? ---- <<C... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man is brought to the emergency department by his family because of severe upper back pain, which he describes as ripping. The pain started suddenly 1 hour ago while he was watching television. He has hypertension for 13 years, but he is not compliant with his medications. He denies the use ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man comes to the physician because of several episodes of painless bloody urine over the past 6 months. The episodes are not related to physical activity. He has had frequent nosebleeds since early childhood and an episode of heavy bleeding after a tooth extraction one year ago. He smokes on... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man comes to the physician because of a 3-week history of progressive diarrhea and a 2.2-kg (5-lb) weight loss. During the past week, he has had six small bloody stools daily. He is employed as a sales manager and regularly flies to South America. He has HIV, gastroesophageal reflux disease,... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old female presents to her primary care physician complaining of a gradually enlarging neck mass. She reports that she first developed a firm nodular midline mass on the anterior aspect of her neck two months ago. She is otherwise healthy and takes no medications. A fine-needle aspiration is per... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old G1P0 female of Middle Eastern descent gives birth to a male infant at 38 weeks’ gestation. The child is in the 15th percentile for both height and weight. Over the course of the first six months of the child’s life, he develops multiple severe skin and mucosal infections characterized by dra... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 15-year-old girl is brought to the physician by her mother for a 2-day history of abdominal pain, nausea, vomiting, diarrhea, and decreased appetite. Her last menstrual period was 3 weeks ago. Her temperature is 37.6°C (99.7°F). Abdominal examination shows tenderness to palpation with guarding in the ri... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old man presents to the emergency department with a headache, blurry vision, and abdominal pain. He states that his symptoms started several hours ago and have been gradually worsening. His temperature is 99.3°F (37.4°C), blood pressure is 222/128 mmHg, pulse is 87/min, respirations are 16/min, ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old man presents to his primary care physician with a complaint of excessive daytime sleepiness. He denies any substance abuse or major changes in his sleep schedule. He reports frequently dozing off during his regular daily activities. On further review of systems, he endorses falling asleep f... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old man presents to the primary care office with a recent history of frequent falls. He had been able to walk normally until about a year ago when he started noticing that both of his legs felt weak. He's also had some trouble with feeling in his feet. These 2 problems have caused multiple falls... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old man is brought to the emergency department because of a 1-hour history of disorientation and slurred speech. He has a 10-year history of hypertension and hypercholesterolemia. His blood pressure is 210/110 mm Hg, and pulse is 90/min. Once the patient is stabilized, an MRI of the brain is per... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old boy presents to the pediatrician for a well child visit. He is meeting his developmental milestones and is in the 15th percentile for height and 70th percentile for weight. His parents report that he complains of fatiguing easily and having trouble participating in sports. They are concerned ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old man is brought to the emergency department because of a knife wound to his back. His pulse is 110/min, respirations are 14/min, and blood pressure is 125/78 mm Hg. Examination shows a 5-cm deep stab wound at the level of T9. He withdraws the right foot to pain but is unable to sense vibratio... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old girl is brought to the physician because of a 2-hour history of severe epigastric pain, nausea, and vomiting. Her father has a history of similar episodes of abdominal pain and developed diabetes mellitus at the age of 30 years. Abdominal examination shows guarding and rigidity. Ultrasonogra... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 24-year-old man is brought to your emergency department under arrest by the local police. The patient was found naked at a busy intersection jumping up and down on top of a car. Interviewing the patient, you discover that he has not slept in 2 days because he does not feel tired. He reports hearing voic... | C |
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