skip to main content

Septic shock monitoring — RCPSC IM MCQ

Instant feedback + full explanation. One question, done properly.

HardCritical CareSeptic shock monitoringRCPSC IM

A 35-year-old woman is admitted with severe community-acquired pneumonia. Despite 30 mL/kg crystalloid, ceftriaxone, and azithromycin, her blood pressure is 84/46 mm Hg, lactate is 4.8 mmol/L, and urine output is 10 mL/hour. What is the most appropriate investigation?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: A — Repeat lactate measurement to assess response to resuscitation

In septic shock, lactate helps risk-stratify and assess response to resuscitation. It should be remeasured while antibiotics, vasopressors, and source control proceed.

Reference: Surviving Sepsis Campaign