skip to main content

SBT Failure Recognition — FRCA Final MCQ

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

ModerateIntensive Care MedicineSBT Failure RecognitionFRCA Final

SBT on T-piece 30 min: RR 32, HR 80→110, SpO2 93%, diaphoresis. What does this indicate?

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

Reveal the answer and explanation

Correct answer: E — SBT failure — return to support, investigate

SBT failure criteria: RR >35 or >50% increase, HR increase >20%, desaturation, distress signs. Return to comfortable support and investigate causes (fluid overload, diaphragm weakness, secretions, cardiac failure, metabolic).

Reference: ICS – 2023 – Weaning from mechanical ventilation