Questões de USMLE

A 28-year-old G2P1 woman at 20 weeks gestation presents to the emergency department with a 2-day history of fever (38.5°C), myalgias, and mild nausea. She reports recent consumptio…

A 2-year-old boy with functional asplenia secondary to sickle cell disease (hemoglobin S on electrophoresis) presents for preventive vaccination against encapsulated bacteria. Vita…

A 42-year-old woman with a 10-year history of systemic lupus erythematosus presents to the emergency department with a 3-day history of dysuria, frequency, and left flank pain. She…

A 32-year-old woman presents to the emergency department with a 3-day history of fever, severe frontal headache, and neck stiffness. She reports photophobia and has had one episode…

A 55-year-old man with rheumatoid arthritis managed with infliximab presents to clinic with a 3-week history of a painless, indurated ulcer with minimal drainage on his left forear…

A 16-year-old male with sickle cell disease is hospitalized for a severe infection. His spleen has autosplenectomized, and he has had other minor infections in the past. His sympto…

A 28-year-old man presents to the emergency department 6 hours after eating raw oysters at a seafood restaurant. He reports acute onset of profuse, watery diarrhea and severe cramp…

A 45-year-old man with COPD presents to the emergency department with a 3-day history of productive cough with green sputum, dyspnea, and fever. Vital signs: BP 128/82 mmHg, HR 102…

A 19-year-old woman presents with her third episode of gonococcal cervicitis in 12 months despite appropriate ceftriaxone and azithromycin treatment. Vital signs show BP 118/76, HR…

A 35-year-old male presents to the emergency department with intense back pain. He is hydrated and given pain medication. After several hours, he passes a kidney stone. Laboratory …

A 23-year-old female with sickle cell disease presents with fever (39.2°C), severe left tibial pain, and tachycardia (HR 108/min). Blood pressure is 118/76 mmHg, respirations 18/mi…

A 34-year-old man returns from South Asia presenting with profuse watery diarrhea, severe dehydration, and abdominal cramping for 3 days. Vital signs show BP 90/60 mmHg, HR 118/min…

A 19-year-old college freshman living in dormitory housing presents with fever (39.2°C), severe headache, neck stiffness, and petechial rash. Vital signs show HR 118/min, RR 22/min…

A culture of Staphylococcus aureus bacteria is selected over many months for its ability to grow in increasing concentrations of penicillin. When colonies of this original culture …

A 47-year-old male presents with a nonproductive cough and rales on his chest examination. A chest x-ray film suggests atypical pneumonia. The pneumonia resolves after treatment wi…

A 4-week-old laboratory mouse receives an intraperitoneal injection of live nonencapsulated Streptococcus pneumoniae mixed with heat-killed encapsulated strain. Within 48 hours, th…

A 36 year old man with untreated HIV infection develops progressive visual changes, weakness, and difficulty speaking over several weeks. MRI of the brain shows multiple asymmetric…

A 24-year-old female presents with fever (38.9°C), malaise, and a dry, nonproductive cough for 5 days. She reports headache, myalgias, and leg pain. Vital signs show HR 102/min, RR…

A 45-year-old man with COPD presents with sudden-onset fever (39.2°C), productive cough with blood-tinged sputum, and pleuritic chest pain. Vital signs show HR 108/min, RR 22/min, …

A 47-year-old male with a history of sickle cell disease has had numerous hospitalizations requiring the placement of IV lines. The patient has poor peripheral venous access, and a…

A 32-year-old woman presents to the emergency department with a 2-day history of fever, severe headache, and neck stiffness. She also reports photophobia and mild confusion. Temper…

A 30-year-old pregnant woman at 16 weeks gestation presents for travel counseling before visiting Central America. She has vital signs: BP 118/76, HR 82, RR 16, Temp 37°C, SpO2 98%…

A 14 month old boy is evaluated for persistent fever and cervical lymphadenitis 6 weeks after receiving the BCG vaccine outside the United States. Culture of a lymph node aspirate …

A 6-year-old boy presents with recurrent bacterial sinusitis (HR 102, BP 108/70, RR 22, Temp 38.2°C). CT sinuses shows opacification of maxillary sinuses with normal neutrophil cou…