Questões de USMLE

A 2-week-old male newborn presents with fever (38.9°C), tachycardia (165 bpm), and omphalitis with erythematous umbilical skin that has separated incompletely. The mother denies an…

A 33-year-old man received equine-derived antitoxin following a snakebite. Eight days later, he presents with fever (38.8°C), diffuse arthralgias, urticarial rash, and mild dyspnea…

A 35-year-old woman presents with a painful ulcer on her foot following a rose thorn prick while gardening. Over several weeks, nodular lesions have spread in a linear pattern alon…

A 28-year-old woman with HIV infection (CD4 count 150 cells/μL) develops recurrent painful oral ulcers and is found to have esophageal ulcers on endoscopy. She is already on acyclo…

A 4-year-old boy with acute onset of fever, cough, and inspiratory stridor is brought to the emergency department. He has not been vaccinated. Laryngoscopy reveals subglottic narro…

A 3-year-old male presents with a 1-day history of loose stools, fever, abdominal cramping, headache, and myalgia. Vital signs show temperature 38.9°C, heart rate 112/min, blood pr…

An 18-year-old, previously healthy female presents to the student health service with fever, vomiting, and diarrhea. On physical examination, she is hypotensive, red, sunburn-like …

About a month after being bitten by a bat, a man develops an influenza-like illness. He subsequently develops striking mood changes, pharyngeal spasms with drooling, and seizures, …

A 7-month-old child presents with a 4-day history of fever, deepening cough, and dyspnea. A chest x-ray film shows multiple interstitial infiltrates and hyperinflation of the lungs…

A 25-year-old Afghani immigrant presents with a confluent maculopapular rash that began on her face then spread downward over her trunk. She states that 3 days ago she started havi…

A 32-year-old man presents with fever (38.5°C), fatigue, and generalized lymphadenopathy. CD4+ count is 450 cells/μL with detectable viral load of 85,000 copies/mL. He denies oppor…

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 31-year-old man enrolled in an HIV drug trial receives a CCR5 antagonist. He presents with fever (38.2°C), tachycardia (102 bpm), and fatigue. Recent CD4 count is 450 cells/μL wi…

A 3-week-old infant presents with fever (38.9°C), irritability, and poor feeding for 2 days. Vital signs show HR 160 bpm, RR 48/min, BP 65/40 mmHg, and SpO2 92% on room air. Physic…

A 45-year-old man with a history of recurrent cold sores presents with severe blepharitis, conjunctivitis, and corneal dendritic ulcers confirmed by fluorescein staining. He has be…

A 72-year-old man with a 15-year history of COPD presents to the emergency department with a 3-day history of dyspnea, fever (38.9°C), and productive cough with purulent sputum. He…

A 32-year-old woman presents with fever, jaundice, and right upper quadrant pain for 5 days. She has a history of intravenous drug use. Laboratory studies show elevated transaminas…

A 6-year-old previously unvaccinated boy presents to the clinic with a 4-day history of fever (39.5°C), cough, coryza, and conjunctivitis. On examination, you note white spots with…

A 35-year-old man comes to the physician with a 2-month history of fever, night sweats, and a cough productive of white sputum. He lives in New York and is currently homeless. He u…

A 64-year-old woman with poorly controlled type 2 diabetes mellitus presents to the emergency department with a 1-week history of progressive erythema, warmth, and swelling of her …

A 53-year-old engineer with diabetes mellitus comes to the employee health center for an annual examination. She has no complaints at this time. A review of her chart reveals that …

A 32-year-old pregnant woman at 8 weeks gestation presents with fever (38.9°C), maculopapular rash on face and trunk, arthralgias, and cervical lymphadenopathy. Vital signs show HR…

A 5-year-old child who has not had routine pediatric care develops a febrile disease with cough and a blotchy rash, and is brought to the emergency department. On physical examinat…

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%…