Questões de USMLE

A 26-year-old woman presents with petechiae and easy bruising two weeks after a viral upper respiratory infection. Vital signs are stable (BP 118/76, HR 82, RR 16, Temp 37°C). Phys…

A 28 year old woman presents with fatigue, frequent nosebleeds, and recurrent infections. She recently completed chloramphenicol therapy abroad. Examination shows scattered petechi…

A 14-year-old girl presents to her primary care physician with a 6-month history of progressively heavy menstrual periods requiring frequent pad changes and soaking through overnig…

A 19-year-old woman presents with lifelong menorrhagia requiring frequent transfusions and recurrent epistaxis. She reports prolonged bleeding for 3 hours after dental extraction l…

A 28-year-old man presents with acute left leg pain and swelling. Vital signs: BP 118/76, HR 92, RR 16, temp 37°C, SpO2 98% on room air. Duplex ultrasound confirms left femoral DVT…

A 28-year-old man with no significant past medical history presents with spontaneous bleeding from the gums, blood in the stool, and a petechial rash. His laboratory results show P…

A 34-year-old woman who is 28 weeks pregnant presents with severe headache, visual disturbances, and right upper quadrant pain. Laboratory studies show platelet count 45,000/μL, Hg…

A 34-year-old woman presents to the emergency department with severe vaginal bleeding and easy bruising. Laboratory studies show PT 18 seconds (normal 11-13), aPTT 45 seconds (norm…

A 45-year-old man with cirrhosis presents with epistaxis and easy bruising. Vital signs: BP 128/76, HR 92, RR 16, Temp 37°C, SpO2 98%. He denies recent anticoagulant use. Laborator…

A 3-year-old boy is brought to the emergency department by his mother after spontaneous epistaxis lasting 2 hours. She reports he had prolonged bleeding for 5 days following circum…

A 3-year-old boy presents with a 6-month history of spontaneous hemarthrosis, intramuscular hematomas, and epistaxis. His mother reports no significant bleeding history. Laboratory…

A 68-year-old man with newly diagnosed gastric cancer presents with acute-onset bilateral lower extremity pain and swelling. Vital signs show BP 138/82, HR 92, RR 18, temp 37.2°C, …

A 12-year-old girl has recurrent gingival bleeding and heavy menses. Her platelet count, PT, and PTT are normal, but bleeding time is prolonged. Platelet aggregation studies show a…

A 43-year-old man with chemotherapy-induced thrombocytopenia receives a platelet transfusion. Thirty minutes later, he develops fever (38.9°C), chills, and malaise. Vital signs sho…

A 45-year-old woman undergoes preoperative screening before elective surgery. Laboratory studies reveal elevated aPTT (48 seconds) with normal PT (12 seconds), platelet count (245,…

A 66-year-old man hospitalized for pulmonary embolism is started on intravenous unfractionated heparin. On hospital day 6, he develops right leg pain and swelling. Vital signs show…

A 28-year-old man presents to the emergency department with a 2-week history of fever, drenching night sweats, and unintentional 8-pound weight loss. Physical examination reveals b…

A 7-year-old boy is brought to the emergency department because of swelling and severe pain in his right knee after a minor fall. His maternal uncle had similar problems. Examinati…

A 61-year-old woman develops acute dyspnea, fever, and hypoxemia within 2 hours of plasma transfusion. Vital signs show BP 128/82 mmHg, HR 118 bpm, RR 28/min, temperature 38.5°C, a…

A 47-year-old woman with metastatic breast cancer who is undergoing chemotherapy comes to the physician for a follow-up exam. She reports extreme fatigue since beginning her chemot…

A 34-year-old pregnant woman with alcohol use disorder presents with fatigue and glossitis. Vital signs show BP 118/76 mmHg, HR 88/min, RR 16/min, temperature 37.2°C, and SpO2 98% …

A 4-year-old boy presents with chronic hemolytic anemia, scleral icterus, and splenomegaly. Vital signs: HR 110/min, RR 22/min, BP 95/60 mmHg, temperature 37.2°C. Laboratory studie…

A 19-year-old previously healthy man presents with acute bilateral leg pain, cyanosis of his feet, and gangrene developing within hours. Laboratory studies show a platelet count of…

A 34-year-old man presents with episodic dark urine in the morning and abdominal pain. He has a history of a hepatic vein thrombosis. Laboratory studies show hemolytic anemia with …