BLS Sequence — NDEB AFK MCQ

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EasyMedical Emergencies in DentistryBLS SequenceNDEB AFK

Which of the following is the correct sequence for BLS (Basic Life Support) in an adult according to current guidelines?

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Correct answer: E — Compressions – Airway – Breathing (CAB)

Current AHA/Heart and Stroke Foundation of Canada BLS guidelines recommend the CAB sequence for adult resuscitation: Compressions first (immediately begin high-quality chest compressions at a rate of 100-120/min, depth 5-6 cm), then Airway (head tilt-chin lift), then Breathing (rescue breaths). Starting with compressions ensures early blood flow to the brain and heart. AED should be applied as soon as available. The earlier ABC sequence was changed in 2010 to emphasise the critical importance of chest compressions.

Reference: Heart and Stroke Foundation of Canada – BLS Guidelines, 2020; AHA Guidelines for CPR and ECC, 2020