Rapid Sequence Intubation Guidelines

Induction Agent Selection

The Society of Critical Care Medicine guidelines confirm that etomidate (0.2-0.4 mg/kg IV) is the preferred induction agent for critically ill patients due to its superior hemodynamic stability 1, 2, 3
Etomidate provides the most favorable hemodynamic profile with no mortality difference compared to other agents, making it the first-line choice for rapid sequence intubation in critically ill adults 1, 2, 3
The American Society of Anesthesiologists recommends that ketamine (1-2 mg/kg IV) serves as an alternative when etomidate is contraindicated or unavailable 3, 4, 5
Ketamine's sympathomimetic properties theoretically maintain hemodynamic stability, but evidence shows higher rates of peri-intubation hypotension compared to etomidate (18.3% vs 12.4%, OR 1.4) 2, 3

The American College of Emergency Physicians recommends succinylcholine 1-1.5 mg/kg IV as the first-line neuromuscular blocking agent when no contraindications exist 4, 5, 6
Rocuronium 0.9-1.2 mg/kg IV should be used when succinylcholine is contraindicated, with higher doses (≥0.9 mg/kg) required for optimal rapid sequence conditions 4, 5
Sugammadex must be immediately available when using high-dose rocuronium for reversal in "cannot intubate, cannot ventilate" scenarios 5

The sedative-hypnotic agent (etomidate or ketamine) MUST be administered before the neuromuscular blocking agent to prevent awareness during paralysis 4, 5
The American Heart Association recommends titrating etomidate in 20 mg increments every 10 seconds until loss of consciousness, rather than rapid bolus 1, 6

The Society of Critical Care Medicine recommends etomidate 0.3 mg/kg IV in hemodynamically unstable patients, with consideration of lower end of ketamine dosing range (1 mg/kg) if used as alternative 5
In septic patients, evidence is mixed regarding hypotension risk between agents, and corticosteroid administration following etomidate is NOT recommended despite transient adrenal suppression 2, 3, 5

Ensure full neuromuscular blockade before attempting intubation to prevent coughing or movement that increases aspiration risk, using a peripheral nerve stimulator to confirm adequate blockade if uncertain 5
In critically ill patients with depleted catecholamine stores, ketamine may cause paradoxical hypotension, requiring clinical judgment based on individual patient physiology 2, 3, 5