USMLE Step 2 Quiz
20 questions · no time limit
0:00
CRITICAL CARE
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
PASSAGE
A 68-year-old man with a history of COPD is brought to the emergency department by his family due to a 3-day history of productive cough, fever, and worsening confusion. His temperature is 38.9°C (102.0°F), blood pressure is 80/45 mmHg, heart rate is 130/min, and respiratory rate is 28/min. On examination, he is lethargic and oriented only to person. Crackles are heard over the right lung base. Initial laboratory studies show a WBC count of 18,500/mm³ and a serum lactate level of 4.5 mmol/L. An initial 1-liter bolus of normal saline does not improve his blood pressure.
Which of the following is the most likely diagnosis?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end