Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 45-year-old man with type 2 diabetes presents with eruptive xanthomas on his elbows and palms. Vital signs: BP 148/92 mmHg, HR 88 bpm, RR 16, Temp 37°C, SpO2 98% RA. Labs show tr…
A 56-year-old woman with primary biliary cholangitis presents with progressive jaundice and pruritus. Vital signs: BP 128/82, HR 88, RR 16, Temp 37°C, SpO2 98%. Laboratory studies …
A 28-year-old woman with Tangier disease presents with hepatosplenomegaly, lymphadenopathy, and progressive peripheral neuropathy. Vital signs show BP 118/76, HR 88, RR 16, Temp 37…
A 50-year-old man with a family history of premature coronary artery disease presents for screening. Vital signs are BP 138/88 mmHg, HR 78/min, RR 16/min, temp 37°C, SpO2 98%. Labo…
A 3-year-old boy presents with failure to thrive and steatorrhea since infancy. Vital signs show HR 110, RR 22, normal BP and temperature. Laboratory studies reveal markedly elevat…
A 72-year-old man with gram-negative sepsis presents with hypotension (BP 78/52 mmHg), tachycardia (HR 118/min), tachypnea (RR 22/min), and fever (38.9°C). Laboratory findings reve…
A 35-year-old woman on atorvastatin 40 mg daily presents with acute myalgia, proximal weakness, and dark urine. Vital signs: BP 128/82, HR 92, RR 16, Temp 37.2°C, SpO2 98%. Laborat…
A 29 year old woman with severe rheumatoid arthritis develops fatigue and oral ulcers 2 months after starting a new medication. Laboratory studies show hemoglobin 9.8 g/dL, MCV 108…
A 19 year old college student is evaluated after a routine laboratory panel shows total bilirubin of 2.5 mg/dL. He feels well but notes mild scleral icterus during exam week when h…
A full-term newborn presents with severe jaundice within 12 hours of life. Vital signs show HR 160/min, RR 48/min, temperature 37.2°C. Total bilirubin is 28 mg/dL (predominantly un…
A 6-year-old boy with failure to thrive and chronic steatorrhea presents with BP 95/60, HR 98, RR 22, temp 37°C, SpO2 98%. He reports fat-soluble vitamin deficiencies (A, D, E, K) …
A 29-year-old woman with family history of Huntington disease presents for genetic screening. Vital signs are stable (BP 118/76, HR 72, RR 14, Temp 37°C). She reports no current ne…
A 23-year-old woman presents with severe colicky abdominal pain, anxiety, and dark reddish urine three days after initiating phenobarbital for insomnia. Vital signs show HR 118/min…
A 3-year-old boy presents with developmental delay and recurrent upper airway infections. Vital signs show HR 110/min, RR 28/min, BP 105/65 mmHg, temperature 37.2°C. Physical exami…
A 25-year-old male and his wife go to a fertility clinic for evaluation. His wife has no significant past medical history and is given a 'clean bill of health.' He has had bronchie…
A 19-year-old man presents with recurrent bacterial infections and impaired wound healing. Vital signs show BP 118/76 mmHg, HR 88/min, RR 16/min, temp 37.2°C, SpO2 98%. Laboratory …
On physical examination, a newborn is found to have micrognathia, a prominent occiput, low-set ears, and rocker-bottom feet. There is very little mental development during the firs…
A 3-year-old female who is small for her age has had multiple hypoglycemic episodes associated with moderate fasting during periods of illness. In her most recent episode associate…
A 6-month-old male presents with recurrent vomiting, irritability, and poor weight gain over 2 months. Vital signs show HR 128/min, RR 26/min, temp 37.2°C, and BP 85/55 mmHg. Physi…
A prokaryotic operon codes for 2 enzymes and 1 regulatory protein. The operon is expressed only in the presence of a particular sugar. Initial mapping of the operon has differentia…
A 35-year-old female and her husband seek genetic counseling before attempting to conceive. The patient suffers from a particular condition and wants to know the chances that her c…
A family has a history of genetic disease with an autosomal dominant pattern of inheritance. DNA from the grandfather (who is heterozygous for the disease) is cloned and used to co…
In the family shown below, individuals affected with profound deafness are represented by a shaded symbol. (Pedigree shows two couples in generation I and II with normal hearing pr…
A 2-year-old obese female has been diagnosed with Prader-Willi syndrome. To confirm the diagnosis, a DNA methylation assay is performed. A sample of her DNA is first cut with EcoRI…