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Answer the following medical question with the correct letter choice: | <<Question:>> You are interested in examining the prevalence of a highly contagious viral disease over a time period of 5 years. The virus appears to be indigenous to rural parts of northern Africa. Which of the following research study designs would be optimal for your analysis? ---- <<Choices:>> A) Case series B) Cas... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old boy is brought to the clinic by his dad for an annual well-child exam. The boy was diagnosed with ADHD at an outside clinic and has been on methylphenidate for symptom management for the past year. The father reports that the patient is more energetic but that his teacher still complains of h... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old girl suddenly grabs her chest and collapses to the ground while playing volleyball at school. The teacher rushes to evaluate the situation and finds that the girl has no pulse and is not breathing. He starts chest compressions. An automated external defibrillator (AED) is brought to the scen... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 68-year-old woman comes to the emergency department because of abdominal pain for 3 days. Physical examination shows guarding and tenderness to palpation over the left lower abdomen. Test of the stool for occult blood is positive. A CT scan of the abdomen is shown. Which of the following mechanisms best... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 73-year-old man presents to his primary care physician complaining of increased urinary frequency, nocturia, and incomplete emptying after void. He is otherwise healthy, with no active medical problems. On examination, a large, symmetric, firm, smooth prostate is palpated, but otherwise the exam is norm... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old female visits her primary care physician because recently she has started to have painful, numb, and discolored toes. She is otherwise healthy and has no family history of similar conditions that she can recall. Occasionally during these episodes, her fingers and nose will also have similar ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 76-year-old man is brought to the emergency department by his daughter because he has been feeling lightheaded and almost passed out during dinner. Furthermore, over the past few days he has been experiencing heart palpitations. His medical history is significant for well-controlled hypertension and dia... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 15-year-old high school rugby player presents to your clinic with a sore throat. He reports that he started feeling fatigued along with body aches about a week ago. His vitals and physical are normal except for an exudative pharynx and an enlarged spleen. Monospot test comes back positive and the studen... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old man is brought to the emergency department by ambulance following a motor vehicle accident 1 hour prior. He appears agitated. His blood pressure is 85/60 mm Hg, the pulse is 110/min, and the respiratory rate is 19/min. Physical examination shows bruising of the left flank and fracture of the... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man presents to the surgical clinic with swelling of his right leg, fever, and chills for 2 days. The maximum recorded temperature was 38.3°C (101.0°F) at home. His right leg is red and swollen from the dorsum of the foot to the thigh with an ill-defined edge. Venous stasis ulcers are presen... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old Caucasian woman is referred to the outpatient clinic by a physician at a health camp for 6-months of foul-smelling diarrhea with bulky and floating stools as well as significant flatulence which makes her extremely uncomfortable at work and social events. She has concomitant weight loss and ... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old woman with a history of breast cancer, coronary artery disease, gastroesophageal reflux, and diabetes mellitus is diagnosed with angiosarcoma. Which of the following most likely predisposed her to this condition? ---- <<Choices:>> A) Inherited dysfunction of a DNA repair protein B) History o... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 38-year-old man with chronic hepatitis C comes to the physician because of a 10-day history of darkening of his skin and painless blisters. He started working as a landscaper 2 weeks ago. He drinks 2 beers every night and occasionally more on the weekends. Examination shows bullae and oozing erosions in... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old man presents to the emergency department by his father for not sleeping for 2 nights consecutively. His father noticed that the patient has been in an unusual mood. One day ago, the patient disrobed in front of guests after showering. He has also had lengthy conversations with strangers. One... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old woman comes to the physician because she has been hearing voices in her apartment during the past year. She also reports that she has been receiving warning messages in newspaper articles during this period. She thinks that “someone is trying to kill her”. She avoids meeting her family and f... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 26-year-old woman presents to the emergency department for shortness of breath. She was walking up a single flight of stairs when she suddenly felt short of breath. She was unable to resolve her symptoms with use of her albuterol inhaler and called emergency medical services. The patient has a past medi... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old woman comes to the physician because of episodic abdominal pain and fullness for 1 month. The pain extends from the epigastrium to the right upper quadrant. Episodes last up to 2 hours and are not aggravated by eating. She describes the pain as 5 out of 10 in intensity. She has severe nausea... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is brought to the physician because of a 3-day history of fever and chills. The mother reports that he has also been limping for 2 days. He has no history of trauma to this region. His temperature is 38.9°C (102°F). Physical examination shows dull tenderness over his left lower extremity.... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 1-year-old boy presents to the physician with a fever and a persistent cough for the past 5 days. His parents noted that since birth, he has had a history of recurrent skin infections, ear infections, and episodes of pneumonia with organisms including Staphylococcus aureus, Pseudomonas, and Candida. Phy... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> Three days after being admitted to the hospital because of a fall from the roof of a two-story building, a 27-year-old man is being monitored in the intensive care unit. On arrival, the patient was somnolent and not oriented to person, place, or time. A CT scan of the head showed an epidural hemorrhage th... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man presents to the emergency department due to altered mental status. His symptoms began approximately two weeks prior to presentation where he complained of increasing fatigue, malaise, loss of appetite, and subjective fever. Vital signs are significant for a temperature of 102.0°F (38.9°C... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is diagnosed with an alpha-gal allergy, also known as mammalian meat allergy (MMA). This condition is mediated by a reaction to the carbohydrate, galactose-alpha-1,3-galactose. An experimental treatment has been developed to halt the N-linked oligosaccharide addition that occurs in the sy... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 21-year-old woman with a history of acute lymphoblastic leukemia comes to the physician because she has not had a menstrual period for 12 months. Menarche occurred at the age of 11 years, and menses occurred at regular 28-day intervals until they became irregular 1 year ago. Physical examination shows n... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 20-year-old premedical student travels abroad for a global health service semester and presents to the local clinic with palpitations. She initially dismissed these symptoms as a side effect of working too hard; however, she has been noticing that these episodes have increased in frequency. Otherwise, s... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 5-year-old boy presents with a 1-month history of loss of appetite, fatigability, unexplained irritability, and intermittent low-grade fever. The patient’s mother says he also often has bone pain, especially in his lower limbs. Physical examination is significant for the presence of generalized pallor, ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is brought to the physician by his mother because of a 2-week history of generalized fatigue, intermittent fever, and occasional bleeding from his nose. His temperature is 38.3°C (100.9°F). He appears pale. Physical examination shows cervical lymphadenopathy and multiple petechiae on his ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old woman is brought to the clinic by her husband for changes in personality. He reports that 3 years ago she began to forget day-to-day things (e.g., where her keys are and the directions home). She would intermittently forget who her friends are and put the remote in the refrigerator. Recently... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> In your outpatient clinic you are seeing a 22-year-old female for her annual check-up. She has a past medical history significant for sexual abuse in her teens. Currently she has no complaints. She reports that her last menstrual period was 1 week ago. Her temperature is 98.5 deg F (36.9 deg C), pulse is ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 28-year-old G1P0 woman who is 30 weeks pregnant presents to the women's health center for a prenatal checkup. She is concerned that her baby is not moving as much as usual over the past five days. She thinks she only felt the baby move eight times over an hour long period. Her prenatal history was notab... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 63-year-old woman is brought to the physician by her husband for the evaluation of progressive memory loss for the past 5 months. During the last 2 weeks, she has also had problems getting dressed and finding her way back home from the grocery store. She has had several episodes of jerky, repetitive, tw... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old woman presents with right knee pain over the last 3 weeks. The pain is moderate in severity but makes any physical activity that involves bending her knee extremely discomfortable. Her pain worsens with running and squatting, in particular. The patient has no history of medical conditions no... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old woman presents to a medical office for a check-up. The patient has a 5-year history of epilepsy with focal-onset motor seizures and currently is seizure-free on 50 mg of lamotrigine 3 times a day. She does not have any concurrent illnesses and does not take other medications, except oral con... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man presents to the emergency department with bloody vomitus. The patient is an alcoholic and has presented similarly before. He is given ondansetron; however, he continues to vomit. The patient complains of sudden substernal chest pain and dysphagia after another bout of vomiting. His tempe... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman presents with fever, rash, abdominal pain, and vaginal discharge for the past 3 days. She describes the pain as moderate, cramping in character, and diffusely localized to the suprapubic region. She says the rash is painless and does not itch. She also complains of associated generaliz... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old man presents to the emergency department with crushing substernal chest pain. The patient has a past medical history of obesity, diabetes, and hypertension. He drinks 5 alcoholic drinks every night and has a 40 pack-year smoking history. The patient works as a truck driver and leads a sedent... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 48-year-old man comes to the physician because of a 2-day history of fever, flank pain, and hematuria. He has chronic back pain, for which he has been taking meloxicam for the past 2 weeks. His temperature is 38.9°C (102°F). Physical examination shows a diffuse maculopapular rash over his trunk and extr... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old woman presents to the emergency department when she was found trying to direct traffic on the highway in the middle of the night. The patient states that she has created a pooled queuing system that will drastically reduce the traffic during rush hour. When speaking with the patient, she doe... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old lactose intolerant man presents to the outpatient clinic with complaints of numbness and tingling in his fingers and toes for the past month. He also complains of pain in his calf muscles while sleeping; the pain is severe enough to wake him up in the middle of the night. He is a software en... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 54-year-old man presents to the emergency department for fatigue and weight loss. He reports feeling increasingly tired over the last several weeks and has lost seven pounds over the last month. His wife has also noticed a yellowing of the eyes. He endorses mild nausea but denies vomiting, abdominal pai... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 44-year-old man presents to a clinic for the evaluation of difficulty swallowing for the past few days. He says that he has noticed progressively worsening chest pain when he attempts to swallow solids or liquids. He works from a home office, has not had any recent sick contacts, and is currently not se... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 57-year-old female presents to her primary care physician with a chief complaint of feeling tired all the time. She states her symptoms began several months ago, around the time that her husband committed suicide. Since then she has had thoughts of joining her husband. She complains of feeling excessive... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 55-year-old man is brought to the emergency department by ambulance after being found disoriented. He has limited ability to communicate in English but indicates that he has left flank pain and a fever. Chart review reveals that he has diabetes and sleep apnea but both are well controlled. He also has a... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 52-year-old woman with hypertension and type 2 diabetes mellitus comes to the physician because of a 1-day history of severe pain and swelling of her left great toe. She has had similar episodes sporadically over the past 3 years. She drinks 6 beers daily. She does not smoke or use illicit drugs. She is... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4th grade class in Salem, Massachusetts has 20 students. Due to recent media coverage of the fallacious association between vaccines and autism, none of the students have been immunized against influenza this year. Fortunately, up to this point none of the students has come down with the flu. During the... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 67-year-old man presents to his primary care physician for abdominal pain. The patient states that he has had abdominal pain for the past month that has been steadily worsening. In addition, he endorses weight loss and general fatigue. The patient has a past medical history of obesity, diabetes, and hyp... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 16-year-old boy comes to the physician because his parents are concerned about his persistently poor performance at school. He has had increased impulsivity and has difficulty making and keeping friends. On questioning, he reports that he is being bullied by his classmates for his high-pitched voice, th... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old man presents with a several-month history of foot sensory changes. He has noticed that he has a hard time telling the difference between a hardwood floor and carpet beneath his feet. He's also had a couple of falls lately; these falls were not preceded by any lightheadedness or palpitations.... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 34-year-old man comes to the physician because of increasing lower back and neck pain for the past 7 months. The pain is worse in the morning and improves when he plays basketball. He has noticed shortness of breath while playing for the past 2 months. He is sexually active with 2 female partners and us... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 43-year-old woman was admitted to the hospital after a fall. When the emergency services arrived, she was unresponsive, did not open her eyes, but responded to painful stimuli. The witnesses say that she had convulsions lasting about 30 seconds when she lost consciousness after a traumatic event. On her... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man presents with hypercholesterolemia. Family history is significant for multiple cardiac deaths and other cardiovascular diseases. The patient reports a 40-pack-year smoking history. BMI is 28 kg/m2. Total cholesterol is 255 mg/dL and low-density lipoprotein (LDL) is more than 175 mg/dL. L... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 27-year-old male basketball player presents to his primary care physician for a normal check-up. He has not been seen by a physician in ten years. He reports that he feels well and has no complaints. His temperature is 98.6°F (37°C), blood pressure is 110/70 mmHg, pulse is 85/min, and respirations are 1... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 59-year-old man comes to your clinic accompanied by his wife complaining of nausea and dizziness. He reports that he is unsure when his symptoms started, but they have been affecting him for “a while.” It began as episodes of “unsteadiness” and progressed to a feeling of “spinning.” He cannot tell if hi... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 1710-g (3.77-lb) male newborn is delivered to a 27-year-old woman at 33 weeks' gestation. Pregnancy was uncomplicated, but the mother had a cold and sore throat 2 months before delivery that resolved spontaneously. The newborn appears lethargic. He is at the 15th percentile for height and weight and at ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 14-year-old Asian girl is brought to the physician because of a 6-week history of fatigue. During this period, she has had a 3-kg (6.6-lb) weight loss and intermittent low-grade fevers. She also reports recurrent episodes of pain in her left wrist and right knee. She has no personal history of serious i... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-year-old man is brought to the emergency department due to the confusion that started earlier in the day. His parents report that the patient had recovered from vomiting and diarrhea 3 days ago without medical intervention. They mention that although nausea and vomiting have resolved, the patient co... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 6-week-old infant is brought to the emergency department because of fever, fatigue, and dry cough for the past 24 hours. She has been feeding poorly and has had difficulty latching on when breastfeeding since this started. She has also had nasal congestion. The mother reports that her... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old man comes to the emergency department because of a 1-week-history of progressively worsening dyspnea and intermittent chest pain that increases on inspiration. He had an upper respiratory tract infection 2 weeks ago. His pulse is 115/min and blood pressure is 100/65 mm Hg. Examination shows ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 32-year-old G1P0 woman presents to the emergency department at 34 weeks gestation. She complains of vague upper abdominal pain and nausea which has persisted for 2 weeks, as well as persistent headache over the past several days. Her temperature is 99.0°F (37.2°C), blood pressure is 164/89 mmHg, pulse i... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old girl is brought to the emergency department by her mother after a fall in the park. Her mother reports a history of spontaneous frequent falls and delayed development for which calcium and iron supplementations were prescribed by their family physician. She has been on antibiotic therapy for ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 42-year-old African American woman presents to the physician’s office complaining of sudden onset chest pain. She describes the pain as sharp, non-radiating with improvement when she is sitting up and leaning forward. She denies fever, chills, or a cough, but she has had swollen hands and wrists for the... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 47-year-old man with alcoholic cirrhosis is brought to the emergency department by ambulance 20 minutes after being involved in a high-speed motor vehicle collision. His pulse is 120/min, respirations are 28/min and labored, and blood pressure is 70/40 mm Hg. Physical examination shows ecchymoses over t... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> Scientists are studying human lung development by trying to identify which proteins and signaling factors trigger lung bud division and bronchiole branching. Their main focus is particularly around the 20th week of gestation, during which terminal bronchioles branch into respiratory bronchioles and furthe... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 68-year-old male with congestive heart failure recently had his medication regiment adjusted to better control his hypertension. Three weeks later, laboratory analysis shows his serum calcium and magnesium levels have both decreased. The diuretic used in this patient acts predominantly on which nephron ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A researcher is trying to decipher how mRNA codons contain information about proteins. He first constructs a sequence of all cytosine nucleotides and sees that a string of prolines is synthesized. He knows from previous research that information is encoded in groups of 3 so generates the following sequenc... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 50-year-old man presents to an ophthalmologist with progressive decrease in his visual acuity over the last 6 months. He also mentions that he has become excessively sensitive to light over the same duration. Past medical history is significant for schizophrenia diagnosed in early adulthood which has be... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> Eight hours after undergoing successful cholecystectomy, a 65-year-old man with scoliosis complains of shortness of breath. Respirations are 28/min and pulse oximetry on room air shows an oxygen saturation of 85%. Physical examination shows kyphotic deformation of the thorax. Cardiopulmonary examination s... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 41-year-old man is brought to the emergency department 3 hours after falling while mountain biking and hitting his head. Initially, he refused treatment, but an hour ago he began to develop a severe headache, nausea, and left leg weakness. He has no visual changes and is oriented to person, time, and pl... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 39-year-old woman presents to the emergency department with right upper quadrant abdominal discomfort for the past couple of hours. She says that the pain is dull in nature and denies any radiation. She admits to having similar episodes of pain in the past which subsided on its own. Her temperature is 3... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 4-year-old male presents with a 1-year history of swaying while walking and recent episodes of tripping when ambulating. He has trouble trying to sit and get up from chairs, as well as walking up the stairs to his bedroom. On physical exam, the pediatrician notices nystagmus, absent deep tendon reflexes... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-year-old boy is brought to the physician because of progressive headaches, dizziness, and recurrent episodes of vomiting for 3 weeks. He has a history of surgical removal of a sac-like protuberance on his lower back soon after birth. Neurologic examination shows ataxia. Fundoscopy shows bilateral opti... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 39-year-old man presents to the primary care physician complaining of 6 months of increasing dyspnea and non-productive cough. He has a past medical history of asthma, hypertension, obesity, and hypercholesterolemia. On examination, you notice that he takes shallow breaths and the respiratory rate is 22... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 13-year-old boy is brought to the emergency department by his parents for the evaluation of several episodes of vomiting since this morning. He reports nausea and severe headache. Over the past four days, he has had fever, a runny nose, and a sore throat. His mother gave him an analge... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 12-year-old boy presents with a 3-day history of frothy brown urine. He does not complain of any other symptoms. He notes that 3 weeks ago he had a fever with a sore throat, but he did not receive any treatment at the time. His blood pressure is 152/94 mm Hg, heart rate is 72/min, respiratory rate is 15... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 78-year-old male has been hospitalized for the past 3 days after undergoing a revision left total hip replacement. Over the past several hours, the nursing staff reports that the patient has exhibited fluctuating periods of intermittent drowsiness and confusion where he has been speaking to nonexistent ... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 64-year-old woman comes to the physician because of worsening intermittent nausea and burning pain in her upper abdomen for 4 hours. She has not had retrosternal chest pain, shortness of breathing, or vomiting. She has hypertension and type 2 diabetes mellitus. She has smoked one pack of cigarettes dail... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 62-year-old man presents to the emergency department with a 2-day history of fatigue, exertional dyspnea, and the sensation of his heartbeat roaring in the ears. He informs you that he recently had an acute upper respiratory infection. He is a retired car salesman, and he informs you that he and his par... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old G1P0 gives birth to a male infant at 33 weeks’ gestation. The mother immigrated from Sudan one month prior to giving birth. She had no prenatal care and took no prenatal vitamins. She does not speak English and is unable to provide a medical history. The child’s temperature is 101.0°F (38.3°... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-year-old boy is brought to the physician’s office by his mother because of facial swelling for the past 2 days. The mother says that her son has always been healthy and active but is becoming increasingly lethargic and now has a puffy face. Upon inquiry, the boy describes a foamy appearance of his uri... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 25-year-old female is brought to the physician by her mother who is concerned about her recent behaviors. The mother states that her daughter has been collecting “useless items” in her apartment over the last year. When she tried to persuade her daughter to throw away several years’ worth of old newspap... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 7-year-old girl with a history of painful crises and impaired growth presents for evaluation of sickle cell disease. You perform hemoglobin gel electrophoresis, and diagnose her with homozygous sickle cell disease. Which of the gel electrophoresis lanes in the image is hers? ---- <<Choices:>> A) Lane 2 ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 45-year-old male presents to your office following a diagnosis of an autosomal dominant disease. He has started therapy and has a strong family support system. He endorses a decrease in appetite over the last two weeks that he attributes to sadness surrounding his diagnosis and a depressed mood but deni... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 2-week-old neonate in the intensive care unit presents as severely ill. His mother says he was a bit irritated earlier this week, and his condition deteriorated quickly. It is apparent that he is in constant pain. He could not be fed easily and vomited three times since yesterday alone. The physical exa... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old man comes to the physician for a routine health maintenance examination. He has a 20-year history of seizure disorder characterized by sudden-onset, periodic, jerking movements of both arms and lip smacking. He has a history of intravenous cocaine use. His temperature is 37.1°C (98.8°F), pul... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 65-year-old man is brought to his primary care provider by his concerned wife. She reports he has had this "thing" on his eye for years and refuses to seek care. He denies any pain or discharge from the affected eye. A picture of his eye is shown below. Given the diagnosis, what are you most likely to d... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 17-year-old girl is brought to the physician by her mother for the evaluation of irregular menstrual bleeding. Menses have occurred at 60- to 90-day intervals since menarche at the age of 12 years. Her last menstrual period was 4 weeks ago. She is sexually active with one male partner, and they use cond... | D |
Answer the following medical question with the correct letter choice: | <<Question:>> A 31-year-old woman is brought to the emergency department 25 minutes after sustaining a gunshot wound to the neck. She did not lose consciousness. On arrival, she has severe neck pain. She appears anxious. Her temperature is 37°C (98.6°F), pulse is 105/min, respirations are 25/min, and blood pressure is ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> During protein translation the triplet code of mRNA is read by a ribosome and assisted elongation and translation factors until it reaches a stop codon labeled: UAA, UAG, or UGA. Then, when a stop codon is reached, a releasing factor binds, removing the peptide from the active ribosome and completing tran... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 9-hour-old newborn female is found in the newborn nursery with a diffuse swelling of the scalp not present at birth. The child was born at 38 weeks of gestation to a 28-year-old gravida 3. The mother went into spontaneous labor, but the delivery was complicated by a prolonged second stage of labor. A va... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 36-year-old woman is brought to the emergency department after a high-speed motor vehicle collision. Her temperature is 36.5°C (97.7°F), pulse is 120/min, respirations are 24/min, and blood pressure is 100/65 mm Hg. Examination shows second and third-degree burns covering 30% of the surface area of her ... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An energy drink that claims to improve athletic performance is being investigated by a group of scientists for its mechanism of action. Although its exact mode of action is unknown, an active substance in the drink is thought to increase the activity of an ATPase involved in muscle contraction. By radiola... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 58-year-old man presents with a high-grade fever, throbbing left-sided headache, vision loss, and left orbital pain. He says that his symptoms started acutely 2 days ago with painful left-sided mid-facial swelling and a rash, which progressively worsened. Today, he woke up with complete vision loss in h... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 35-year-old woman presents to the emergency room with chest pain. She describes the chest pain as severe, 9/10, sharp in character, and diffusely localized to anterior chest wall. She also says she is sweating profusely and feels like “she is about to die”. She has presented to at least 4 different emer... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 3-year-old boy is brought to the physician for a follow-up examination. He has suffered from seizures since the age of 8 months. His mother has noticed he often has unprovoked bouts of laughter and loves playing with water. She describes him as having a happy, excitable demeanor. He can stand without su... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> A 29-year-old African-American woman, gravida 4, para 0, comes to the physician for evaluation of recurrent abortions. Each pregnancy resulted in spontaneous abortion in the second trimester. The patient has a history of joint pain, chronic migraines, and recurrent poorly defined, macular skin rashes. She... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> An investigator is studying the structural characteristics of pathogenic viruses. Cell cultures infected by different viruses are observed under a scanning electron microscope. One of the cell samples is infected by a virus that has an envelope composed of nuclear membrane molecules. The most likely virus... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A 23-year-old man comes to the physician because of a 2-day history of profuse watery diarrhea and abdominal cramps. Four days ago, he returned from a backpacking trip across Southeast Asia. Physical examination shows dry mucous membranes and decreased skin turgor. Stool culture shows gram-negative, oxida... | C |
Answer the following medical question with the correct letter choice: | <<Question:>> A 74-year-old man presents to the clinic for a routine health checkup. He has been hypertensive for the past 20 years, and he has had congestive heart failure for the past 2 years. He is currently on captopril and claims to be compliant with his medication. His most recent echocardiogram report shows that... | A |
Answer the following medical question with the correct letter choice: | <<Question:>> An 18-month-old boy is brought to the physician for a well-child examination. He was born at term and has been healthy since. He can walk alone and run. He feeds himself with a spoon and can drink from a cup. He can scribble. He babbles and says 'mama'. He points to show objects in which he has interest. ... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A previously healthy 35-year-old woman comes to the emergency department because of a sudden onset of difficulty breathing that began when she woke up that morning. She also reports a dry cough and chest pain that is worse with inspiration. She does not smoke, drink alcohol, or use illicit drugs. Her only... | B |
Answer the following medical question with the correct letter choice: | <<Question:>> A group of researchers conducted various studies on hepatitis C incidence and prevalence. They noticed that there is a high prevalence of hepatitis C in third-world countries, where it has a significant impact on the quality of life of the infected individual. The research group made several attempts to p... | B |
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