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Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old female presents to the emergency department complaining of severe abdominal pain and several days of bloody diarrhea. Her symptoms began with intermittent bloody diarrhea five days ago and have worsened steadily. For the last 24 hours, she has complained of fevers, chills, and abdominal pain... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman comes to the physician because of a 2-month history of progressive muscular weakness. She has had difficulty climbing stairs, getting up from chairs, and brushing her hair. Her vital signs are within normal limits. Muscle strength is 2/5 with flexion of the hips and 3/5 with abduction ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A neuroscientist is delivering a lecture on the electrophysiology of the brain. He talks about neuroreceptors which act as ion channels in the neurons. He mentions a specific receptor, which is both voltage-gated and ligand-gated ion channel. Which of the following receptors is most likely to be the one m... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old woman comes to the physician because of several years of recurrent pelvic pain and constipation. She has increased fecal urgency and a sensation of incomplete evacuation following defecation. She has had no problems associated with urination. Her last menstrual period was 6 years ago. She ha... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old male from rural West Virginia presents to his family medicine doctor to discuss why he is having trouble getting his wife pregnant. On exam, he is 6 feet 2 inches with a frail frame and broad hips for a male his size. He is noted to have mild gynecomastia, no facial hair, and small, underdev... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old woman is hospitalized for an open reduction of a fracture of her right femur following a motor vehicle accident 2 hours prior. She has had rheumatoid arthritis for 12 years. She was hospitalized 1 month ago for an exacerbation of rheumatoid arthritis. Since then, she has been taking a higher... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old woman presents to the outpatient OB/GYN clinic as a new patient who wishes to begin contraception. She has no significant past medical history, family history, or social history. The review of systems is negative. Her vital signs are: blood pressure 118/78 mm Hg, pulse 73/min, and respirator... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old man presents to his primary care provider for abdominal pain. He reports that for several months he has been experiencing a stabbing pain above the umbilicus during meals. He denies associated symptoms of nausea, vomiting, or diarrhea. The patient’s past medical history is significant for hy... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A patient is infected with a pathogen and produces many antibodies to many antigens associated with that pathogen via Th cell-activated B cells. This takes place in the germinal center of the lymphoid tissues. If the same patient is later re-infected with the same pathogen, the immune system will respond ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> Physical exam of a 15-year-old female reveals impetigo around her mouth. A sample of the pus is taken and cultured. Growth reveals gram-positive cocci in chains that are bacitracin sensitive. Which of the following symptoms would be concerning for a serious sequelae of this skin infection? ---- <<Choices:... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old woman comes to a physician for a routine health maintenance examination. She moved to Denver 1 week ago after having lived in New York City all her life. She has no history of serious illness and takes no medications. Which of the following sets of changes is most likely on analysis of a blo... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old male is found to have Neisseria gonorrhoeae bacteremia. This bacterium produces an IgA protease capable of cleaving the hinge region of IgA antibodies. What is the most likely physiological consequence of such a protease? ---- <<Choices:>> A) Membrane attack complex formation is impaired B) ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old girl is brought to the physician with complaints of erythema and rashes over the bridge of her nose and on her forehead for the past 6 months. She also has vesiculobullous and erythematous scaly crusted lesions on the scalp and around the perioral areas. Her parents report a history of worsen... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A graduate student at the biochemistry laboratory decides to research the different effects of vitamin deficiencies in mice by completely depriving the mice of one vitamin. The symptoms of this deficiency include posterior column and spinocerebellar tract demyelination, as well as hemolytic anemia. Furthe... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old woman presents to the physician for a routine gynecological visit. She denies any acute issues and remarks that she has not been sexually active for the past year. Her last Pap test was negative for any abnormal cytology. A pelvic examination and Pap test is performed at the current visit wi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 15-month-old boy is brought to the pediatrician’s office by his mother due to abnormal muscle tone and an inability to walk. He was able to control his head at 5 months of age, roll at 8 months of age, sit at 11 months of age, and develop hand preference at 13 months of age. On physical exam, he is obse... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man presents with generalized edema and dyspnea on exertion. He also complains of easy bruising and nasal bleeding. Past medical history is significant for a right-sided myocardial infarction 4 years ago. Current medications are metoprolol, aspirin, and rosuvastatin. His vital signs are as f... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 82-year-old woman is brought to the emergency room after her neighbor saw her fall in the hallway. She lives alone and remarks that she has been feeling weak lately. Her diet consists of packaged foods and canned meats. Her temperature is 97.6°F (36.4°C), blood pressure is 133/83 mmHg, pulse is 95/min,... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An otherwise healthy 10-day-old boy is brought to the physician by his parents because of progressively enlarging breasts bilaterally for the last 4 days. The parents report that they have sometimes noticed a discharge of small quantities of a white liquid from the left breast since yesterday. During preg... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 60-year-old man presents to the physician for a regular checkup. The patient has a history of osteoarthritis in his right knee and gastroesophageal reflux disease. His conditions are well controlled by medications, and he has no active complaints at the moment. He takes ibuprofen, omeprazole, and a mult... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old male college student presents to the clinic in the month of January with a 2-day history of watery diarrhea. The patient also complains of weakness, nausea, vomiting and abdominal cramps. He has no significant past medical history. He does not take any medication. He drinks socially on the w... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 8-year-old boy is brought to the physician by his mother because of a 3-week history of irritability and frequent bed wetting. She also reports that he has been unable to look upward without tilting his head back for the past 2 months. He is at the 50th percentile for height and weight. His vital signs... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 72-year-old man presents to the physician with a 3-month history of severe lower back pain and fatigue. The pain increases with activity. He has no history of any serious illness. He takes ibuprofen for pain relief. He does not smoke. His blood pressure is 105/65 mm Hg, pulse is 86/min, respiratory rate... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old man and his 9-year-old son are brought to the emergency department following a high-speed motor vehicle collision. The father was the restrained driver. He is conscious. His pulse is 135/min and his blood pressure is 76/55 mm Hg. His hemoglobin concentration is 5.9 g/dL. His son sustained mu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old woman presents to the emergency department with a fever and a headache. Her symptoms started yesterday and have rapidly progressed. Initially, she was experiencing just a fever and a headache which she was treating with acetaminophen. It rapidly progressed to blurry vision, chills, nausea, a... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman comes to the physician for a routine health maintenance examination. She has generalized fatigue and has had difficulties doing her household duties for the past 3 months. She has eczema and gastroesophageal reflux disease. She has a history of using intravenous methamphetamine in her ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old girl is presented to the office by her mother with complaints of cola-colored urine and mild facial puffiness that began 5 days ago. According to her mother, she had a sore throat 3 weeks ago. Her immunization records are up to date. The mother denies fever and any change in bowel habits. Th... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 75-year-old male arrives by ambulance to the emergency room severely confused. His vitals are T 40 C, HR 120 bpm, BP 80/55 mmHg, RR 25. His wife explains that he injured himself about a week ago while cooking, and several days later his finger became infected, oozing with pus. He ignored her warning to ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 74-year-old woman presents to the clinic for evaluation of an erythematous and edematous skin rash on her right leg that has progressively worsened over the last 2 weeks. The medical history is significant for hypertension and diabetes mellitus type 2. She takes prescribed lisinopril and metformin. The ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old girl presents to her physician for the evaluation of episodic shortness of breath and cough. These episodes occur more frequently in spring. Her mother has a history of similar complaints. The physical examination reveals bilateral wheezes on chest auscultation. The initial response to polle... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old boy is brought into your office by his mother. His father recently passed away, and his mother states she just lost her job. She has been unable to buy food regularly, and they have had to eat boiled and preserved vegetables. His mother denies that the boy has any prior medical conditions, bu... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A mother brings her 4-year-old son to his pediatrician. Over the last eight months, her son has been exhibiting several "odd" behaviors. Most importantly, he repeatedly says that he is playing games with a friend named "Steven," though she is certain that he does not exist. She has often found him acting ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old woman comes to the office with her husband because she has had 4 spontaneous abortions. Regarding her medical history, she was diagnosed with systemic lupus erythematosus 9 years ago, had a stroke 3 years ago, and was diagnosed with deep vein thrombosis in the same year. She has no relevant ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old male with history of hypertension presents to your clinic for achy, stiff joints for the last several months. He states that he feels stiff in the morning, particularly in his shoulders, neck, and hips. Occasionally, the aches travel to his elbows and knees. His review of systems is positive... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old woman comes to the physician because of a 3-month history of facial hair growth, acne, and irregular menses. Her friends have told her that her voice sounds lower than usual. Physical examination shows pustular acne and dark hair growth along the jawline. Serum studies show elevated testoste... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of gastroenterologists is concerned about low colonoscopy screening rates. They decide to implement a free patient navigation program to assist local residents and encourage them to obtain colonoscopies in accordance with U.S. Preventive Services Task Force (USPSTF) guidelines. Local residents wer... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old man is brought to the emergency department after he was found unresponsive on the street. Upon admission, he is lethargic and cyanotic with small, symmetrical pinpoint pupils. The following vital signs were registered: blood pressure of 100/60 mm Hg, heart rate of 70/min, respiratory rate of... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old woman applies a PABA sunscreen to her skin before going to the beach. Which type(s) of ultraviolet light will it protect her against? ---- <<Choices:>> A) UVB B) UVC C) UVA and UVB D) UVB and UVC ---- <<Answer:>> | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator studying the epidemiology of breast cancer finds that prevalence of breast cancer has increased significantly in the United States since the 1980s. After analyzing a number of large epidemiological surveillance databases, the epidemiologist notices that the incidence of breast cancer has r... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year old man is being evaluated due to a recent history of fatigue that started 3 weeks ago. The patient presents with a history of HIV, which was first diagnosed 7 years ago. He has been on an antiretroviral regimen and takes it regularly. His CD4+ count is 350 cells/mm3. According to the patient, h... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man presents to the emergency department with acute onset of shortness of breath of 30 minutes' duration. Initially, he felt faint but did not lose consciousness. He is complaining of left-sided chest pain that increases on deep inspiration. He has no history of cardiopulmonary disease. A we... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old nulligravid woman presents to her gynecologist after noticing a lump in her right breast while showering. She states that she first noticed the lump approximately 2 weeks ago, when the mass was slightly tender to touch. Since then, the lump has gotten slightly smaller and is now non-tender. ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old African-American man with a history of congestive heart failure presents to the emergency room with headache, frequent vomiting, diarrhea, anorexia, and heart palpitations. He is taking a drug that binds the sodium-potassium pump in myocytes. EKG reveals ventricular dysrhythmia. Which of the... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old man comes to the physician because of a 3-month history of frequent urination. He has to urinate every 1–2 hours during the day and wakes up at least 2–3 times at night to urinate. He also reports that over the last 2 months, he has difficulty initiating micturition and the urinary stream is... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year-old man presents to the emergency department with rapid onset epigastric pain that started 4 hours ago. He describes the pain as severe, localized to the epigastric region and radiating to the back, which is partially relieved by leaning forward. He admits to binge drinking this evening at a fri... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man presents to his primary care physician with complaints of fatigue and cheek pain that started a day ago. He notes that he has nasal discharge that is yellow/green as well. Otherwise, he feels well and is generally healthy. The patient has a past medical history of type I diabetes mellitu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 14-year-old boy is brought to the physician by his mother because of a 12-hour history of abdominal pain and dark urine. Three days ago, he developed a cough, sore throat, and rhinorrhea. Examination shows conjunctival pallor, scleral icterus, and mild splenomegaly. A peripheral blood smear shows small ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old female presents to her primary care physician with complaints of fevers, nausea/vomiting, and severe left flank pain that has developed over the past several hours. She denies any prior episodes similar to her current presentation. Physical examination is significant for a body temperature o... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-year-old woman presents to the family medicine clinic for evaluation of a sore throat. The patient states that she does not have a runny nose, cough or itchy throat. The patient has no past medical history but she did have an appendectomy when she was 8 years old. She takes acetaminophen when she get... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old woman visits her primary care physician with the complaint that over the past 6 months she has “felt out of breath and dizzy while walking, even after short distances.” She reports no other medical problems and denies taking any medications, vitamins, supplements, recreational drugs, alcohol... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 19-month-old girl is brought by her mother to the local walk-in clinic after noticing a mass protruding from her vagina. The mass had the appearance of "a bunch of grapes". She also says that she has been having a vaginal discharge for the past 6 months. Her family and personal history are not significa... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 78-year-old man receives chemotherapy for advanced hepatocellular carcinoma. Despite appropriate therapy, he dies 4 months later. Histopathological examination of the cancer cells shows the presence of a transmembrane efflux pump protein that is known to cause decreased intracellular concentrations of c... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old woman presents to her physician with chronic breathlessness. Her condition has been progressively worsening over the last 20 years despite treatment with inhaled salbutamol, inhaled corticosteroids, and multiple courses of antibiotics. She has a 30-pack-year smoking history but quit 20 years... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy is brought by his father to a pediatrician for evaluation of stiff jaw and swallowing difficulty. He has also developed painful body spasms triggered by loud noise, light, and physical touch. His father says that a few days ago, his son continued to play football, even after falling and ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old Caucasian man visits his primary care provider with recurrent episodes of moderate to severe abdominal pain, nausea, and anorexia for the past 2 years. Additional complaints include constipation, steatorrhea, weight loss, polyphagia, and polyuria. His personal history is relevant for a 2-yea... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 33-year-old male presents to his primary care physician with complaints of headaches and muscle weakness. His physical exam is entirely within normal limits except for a blood pressure of 150/95. Subsequent routine blood lab work showed a sodium level of 146 and potassium level of 3.0. What is the best ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old woman is hospitalized for chemotherapy following a local recurrence of breast cancer. Because the tumor responded well to the previous chemotherapy regimen, the ordering physician copies and pastes previous recommendations from her electronic health record into the patient’s new orders. Subs... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy presents with his mother to the family medicine clinic for an itchy rash on the face that started 3 days ago. The mother states that her son had a fever with a runny nose a little more than a week ago. There has been no sore throat or cough according to the mother. No significant medical ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 37-year-old G3P2 is referred to a gynecologist by her physician to follow-up on the results of some screening tests. She has a history of 1 medical abortion and 2 vaginal deliveries. The most recent labo, which occurred at 31 years of age, was induced at 41 weeks gestation with prostaglandin application... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 40-year-old man presents with a painless firm mass in the right breast. Examination shows retraction of the nipple and the skin is fixed to the underlying mass. The axillary nodes are palpable. Which of the following statements is true regarding the above condition? ---- <<Choices:>> A) Lobular cancer i... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 56-year-old man presents to the emergency department with severe chest pain and a burning sensation. He accidentally drank a cup of fluid at his construction site 2 hours ago. The liquid was later found to contain lye. On physical examination, his blood pressure is 100/57 mm Hg, respiratory rate is 21/m... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old woman is brought to the emergency department 20 minutes after being involved in a high-speed motor vehicle collision. On arrival, she is unconscious. Her pulse is 140/min, respirations are 12/min and shallow, and blood pressure is 76/55 mm Hg. 0.9% saline infusion is begun. A focused assessm... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old woman comes to the physician because of increasing pain and swelling in her right foot for the past 2 weeks. Initially, the pain was intermittent but it is now constant and she describes it as 8 out of 10 in intensity. She has not had any trauma to the foot or any previous problems with her ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man presents to student health for a cough. The patient states he has paroxysms of coughing followed by gasping for air. The patient is up to date on his vaccinations and is generally healthy. He states he has felt more stressed lately secondary to exams. His temperature is 101.0°F (38.3°C),... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old boy is brought to the physician because of frequent respiratory tract infections and chronic diarrhea. His stools are bulky and greasy, and he has around 8 bowel movements daily. He is at the 10th percentile for height and 25th percentile for weight. Chest examination shows intercostal retrac... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 73-year-old man is admitted to the hospital for jaundice and weight loss. He is an immigrant from the Dominican Republic and speaks little English. A CT scan is performed showing a large mass at the head of the pancreas. When you enter the room to discuss these results with the patient, his daughter and... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old girl presents to the emergency department with a 3-minute episode of a tonic-clonic seizure. The parents deny any previous history of seizure involving the patient or the family. Physical examination reveals an afebrile, well-groomed, and playful appearance, with normal vital signs. The patie... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old woman comes to the physician accompanied by her husband after he started noticing strange behavior. He first noticed her talking to herself 8 months ago. For the past 6 months, she has refused to eat any packaged foods out of fear that the government is trying to poison her. She has no signi... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator studying protein synthesis in human stem cells isolates tRNA molecules bound to mRNA molecules. The isolated tRNA molecules have inosine in the 5' position of the anticodon; of these, some are bound to adenine, some to cytosine, and some to uracil at the 3' position of the mRNA codon. Whic... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 75-year-old man is evaluated in the emergency department for increasing shortness of breath for the last 8 months. He also complains of a dry cough for the last 6 months. Initially, his shortness of breath occurs with exertion, but now he feels it at rest as well. He has no other complaints. He has a se... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 39-year-old man comes to the physician because of a 1-month history of fatigue and red-colored urine. His vital signs are within normal limits. Physical examination shows pallor and jaundice. His platelet count is 90,000/mm3 and creatinine concentration is 1.0 mg/dL. A direct Coombs t... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man is brought to the emergency department by his wife 30 minutes after the sudden onset of severe retrosternal chest pain radiating to his back. He has a history of hyperlipidemia, hypertension, and type 2 diabetes mellitus. He has smoked one-half pack of cigarettes daily for 20 years. Medi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old girl is brought to the emergency department after drinking a bottle of drain cleaner. It is unknown how much the child drank. She has a past medical history of Down syndrome and obesity. The patient's vitals are unremarkable. Physical exam is notable for a child in no acute distress. She is t... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old man presents to the emergency department with chest pain and difficulty breathing for the last 3 hours. He denies cough, nasal discharge or congestion, sneezing, and palpitations. There is no history of recent surgery or hospitalization but he mentions that he was diagnosed with a psychiatri... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man comes to the physician because of a 1-day history of dull pain and stiffness of the right knee. He takes chlorthalidone for hypertension. Physical examination of the right knee shows a large effusion and mild erythema; range of motion is limited by pain. Arthrocentesis of right knee yiel... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old man from India seeks evaluation at a clinic with complaints of sore muscles and lethargy of several days duration. After the physical examination and laboratory testing, the patient is asked to stay for treatment and monitoring. Despite the physician’s warning, the patient leaves the hospita... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old male is found to have an elevated prostate specific antigen (PSA) level on screening labwork. PSA may be elevated in prostate cancer, benign prostatic hypertrophy (BPH), or prostatitis. Which of the following best describes the physiologic function of PSA? ---- <<Choices:>> A) Sperm producti... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old African-American woman comes to the physician for the evaluation of worsening fatigue that started 1 year ago. Physical examination shows mild jaundice and splenomegaly. Laboratory studies show: Hemoglobin 10.4 g/dL Mean corpuscular hemoglobin concentration 43% Hb/cell Platelet count 220,00... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-month-old girl with an immunodeficiency syndrome has been hospitalized for 1 month due to a severe pulmonary infection. Her family came to visit her daily in the beginning of her hospital stay; however, since their car broke down they have been unable to visit for the last 2 weeks. While the infection... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-year-old boy is brought to the emergency department because of colicky abdominal pain and vomiting for 1 day. He has a history of a sore throat 2 weeks ago. His temperature is 37°C (98.6°F), pulse is 100/min, blood pressure is 90/55, and respirations are 28/min. Examination of the lower extremities sh... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> During the course of investigation of a suspected abdominal aortic aneurysm in a 57-year-old woman, a solid 6 × 5 cm mass is detected in the right kidney. The abdominal aorta reveals no abnormalities. The patient is feeling well and has no history of any serious illness or medication usage. She is a 25-pa... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old man comes to the physician because of a 3-month history of fatigue, difficulty swallowing, and weight loss. He has smoked 1 pack of cigarettes daily for 30 years. He is 173 cm (5 ft 8 in) tall, and weighs 54 kg (120 lb); BMI is 18 kg/m2. Upper gastrointestinal endoscopy shows an exophytic tu... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman, gravida 5, para 5, comes to the physician because of a 6-month history of occasional involuntary urine loss that is exacerbated by coughing, sneezing, and laughing. She has no urgency or dysuria. Physical examination shows normal appearing external genitalia, vagina, and cervix. There... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy presents with progressive lethargy and confusion over the last 5 days. He lives with his parents in a home that was built in the early 1900s. His parents report that "his tummy has been hurting" for the last 3 weeks and that he is constipated. He eats and drinks normally, but occasionally... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy is brought to the pediatrician with complaints of fever and a skin rash for the past 2 days. The boy was born by normal vaginal delivery at full term, and his neonatal period was uneventful. He has a history of severe pain in his legs and difficulty eating. His temperature is 38.6°C (101.... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man is brought into the emergency department by his wife for slurred speech and right-sided weakness. The patient has a significant past medical history of hypertension and hyperlipidemia. The wife reports her husband went to bed last night normally but woke up this morning with the symptoms... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old woman is brought to the emergency room for seizure-like activity. Her husband reports that they were in bed sleeping when his wife began complaining of “hot flashes.” Several minutes later, her right arm began to twitch, and she did not respond to his calls. The whole episode lasted for abou... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old man comes to the physician because of a 1-year history of progressive shortness of breath and nonproductive cough. Pulmonary examination shows bibasilar inspiratory crackles. An x-ray of the chest shows multiple nodular opacities in the upper lobes and calcified hilar nodules. Pulmonary func... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 22-year-old man is brought to the emergency department after he was impaled by a metal rod during a work accident. The rod went into his back around the level of T9 but was removed before arrival. He has no past medical history and does not take any medications. On physical examination, he has significa... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old woman comes to the physician for evaluation of a mole on her forearm that has increased in size over the last several months. Physical examination shows a 9-mm skin lesion on the right forearm with irregular borders. An excisional biopsy is performed, and genetic analysis shows a mutation in... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 13-year-old girl presents with a 4-week history of unrelenting cough, night sweats, and fever. No known past medical history and no current medications. The patient recently immigrated to the country from a rural town in northern India. Vaccination status is unknown. Her temperature is 38.5°C (101.3°F),... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old man presents to the emergency department with diffuse abdominal pain, nausea, and vomiting. Laboratory evaluation of admission is significant for serum glucose of 2410 mg/dL, AST of 321 IU/dL, and leukocytes of 21,200 /mL. Within 3 days of admission with supportive care in the intensive care... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is brought to the physician because of recurrent nosebleeds and fatigue for the past 2 months. He also frequently complains his head hurts. The patient has met all motoric milestones for his age but does not like to run because his legs start to hurt if he does. He is at the 40th percenti... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A gastroenterology fellow is interested in the relationship between smoking and incidence of Barrett esophagus. At a departmental grand rounds she recently attended, one of the presenters claimed that smokers are only at increased risk for Barrett esophagus in the presence of acid reflux. She decides to d... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying the interaction between a new drug B and an existing drug A. The results are recorded and plotted on the graph shown. Which of the following properties of drug B best explain the observed effect on the dose-response curve of drug A? ---- <<Choices:>> A) Non-competitive antagoni... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 30-year-old woman, gravida 2, para 1, at 38 weeks' gestation comes to the hospital for regular, painful contractions that have been increasing in frequency. Her pregnancy has been complicated by gestational diabetes treated with insulin. Pelvic examination shows the cervix is 50% effaced and 4 cm dilate... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 6-week-old boy is brought for routine examination at his pediatrician’s office. The patient was born at 39 weeks to a 26-year-old G1P1 mother by normal vaginal delivery. External cephalic version was performed successfully at 37 weeks for breech presentation. Pregnancy was complicated by gestational dia... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman presents to the emergency department for the evaluation of a severe abdominal pain of 5 hours duration. The pain is colicky but is not localized. She also complains of nausea and an episode of vomiting. For the past 2 days, she has been constipated. She has had similar episodes of vary... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old woman comes to the physician for a routine health maintenance examination. She feels well. She has systemic lupus erythematosus and hypertension. She does not drink alcohol. Her current medications include lisinopril and hydroxychloroquine. She appears malnourished. Her vital signs are withi... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 71-year-old man is brought in by his daughter for forgetfulness. The daughter finds herself repeating things she has already told him. She also reports that the patient recently missed a lunch date they had scheduled. She is worried that he may have Alzheimer's disease because her mother had it, and thi... | C |
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