Questões de USMLE

A 28-year-old male comes to the physician because of intermittent right upper quadrant pain that extends to the inferior tip of his scapula. Laboratory studies show mild anemia, wi…

A neonate who initially appears healthy develops vomiting, diarrhea, abdominal pain, and hypoglycemia when weaning is attempted. Other features include a generalized metabolic dist…

A 2-day-old boy delivered at home without routine newborn prophylaxis presents with oozing from the umbilical stump and melena. Vital signs show HR 145 bpm, RR 48/min, BP 58/38 mmH…

A 5-year-old male with growth retardation and mild intellectual impairment has an enlarged thyroid. His serum thyroid-stimulating hormone (TSH) level is 4.3 mU/L (normal: 0.1-4.0 m…

A 22-year-old female with anorexia nervosa is seen in a specialty clinic that deals with eating disorders. A nutritional nurse estimates the content of the patient's regular diet. …

A 4 year old boy recently immigrated from a resource limited region is brought to clinic for difficulty seeing at night. His mother says he frequently bumps into furniture when the…

A 28 year old woman presents with diffuse hair loss, scaly dermatitis around the eyes and mouth, and depressed mood. She has been consuming large amounts of raw egg whites as part …

A 24-year-old man presents with progressive burning pain in his hands and feet worsening with exercise. Vital signs show BP 138/88, HR 98, RR 16, temp 37°C, SpO2 98%. He has cluste…

A 28-year-old female with a history of progressive hepatosplenomegaly and epistaxis was admitted to the hospital with severe pain in her right thigh of 3 days' duration. A similar …

A 3 day old male newborn develops progressive lethargy, poor feeding, and tachypnea. He becomes difficult to arouse but has no hepatomegaly. Laboratory studies show markedly elevat…

A 14 year old boy is evaluated after a deep venous thrombosis. He is tall and thin with long extremities. Slit lamp examination shows downward and inward displacement of the lens. …

A 46 year old man presents with chronic back pain and dark staining of his underwear. He reports that his urine turns black if left standing in the toilet. Physical examination rev…

A 3 year old girl is brought in for sensitivity to sunlight and poor visual acuity. Examination shows very light skin and hair compared with her parents, nystagmus, and decreased r…

A 27 year old woman is evaluated for diffuse hair loss and a scaly dermatitis around the eyes, nose, and mouth. She recently completed a prolonged course of broad spectrum antibiot…

A 34 year old man is brought to the emergency department 8 hours after ingesting windshield washer fluid during a suicide attempt. He complains of blurry vision and abdominal pain.…

A 6 year old boy is brought to clinic because of fatigue, gum bleeding, and pain in both legs. His family recently experienced food insecurity, and his diet has consisted mainly of…

An 8 month old boy has poor weight gain, chronic diarrhea, and abdominal distention. His parents report greasy foul smelling stools since starting formula feeds. Examination shows …

A 37-year-old man presents with vomiting, watery diarrhea, and confusion 6 hours after ingesting contaminated herbal supplements. Vital signs show BP 102/68, HR 108, RR 20, temp 37…

A 3 year old boy is brought to the emergency department with fever and lethargy. Blood cultures later grow Streptococcus pneumoniae. He has had multiple episodes of invasive pyogen…

A 9-year-old girl is brought to the emergency department for sudden-onset slurring of speech and weakness of her right arm and leg. She has a mild intellectual disability. She is a…

A 40-year-old, formerly obese female presents to her physician. She was very proud of having lost 80 lb during the previous 2 years, but has now noticed that her 'hair is falling o…

A cardiovascular researcher is conducting a study to evaluate the relationship between folate levels and cardiovascular disease. The results of the study show that persons with low…

A 54 year old man with alcohol use disorder is brought to the emergency department for confusion and difficulty walking. Examination reveals horizontal nystagmus, ophthalmoplegia, …

A 72 year old man who lives alone presents with fatigue, gum bleeding, and easy bruising. Examination shows swollen bleeding gums, perifollicular hemorrhages, and corkscrew hairs. …