RSI Dose Calculator

Calculate weight-based induction and paralytic doses for Rapid Sequence Intubation.

For educational and clinical reference. Not a substitute for medical judgment. See the medical disclaimer.
Etomidate (0.3 mg/kg)
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Ketamine (1.5 mg/kg)
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Propofol (1.5 mg/kg)
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Midazolam (0.2 mg/kg)
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Succinylcholine (1.5 mg/kg)
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Rocuronium (1.2 mg/kg)
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Fentanyl (3 mcg/kg)
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Lidocaine (1.5 mg/kg)
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References

  1. Walls RM, Murphy MF. Manual of Emergency Airway Management. 5th ed. Wolters Kluwer; 2017.
  2. American College of Emergency Physicians (ACEP) Clinical Policy: RSI Protocols.

How to use

  1. Enter patient weight in kg.
  2. All RSI agent doses appear instantly.
  3. Choose induction + paralytic based on patient physiology.

Frequently asked questions

What is RSI?

Rapid Sequence Intubation — induction agent + paralytic given in quick succession to achieve optimal intubating conditions while minimizing aspiration risk.

Standard doses used?

Etomidate 0.3 mg/kg, Ketamine 1.5 mg/kg, Propofol 1.5 mg/kg, Midazolam 0.2 mg/kg, Succinylcholine 1.5 mg/kg, Rocuronium 1.2 mg/kg.

Which induction agent?

Etomidate for hemodynamic instability; ketamine for asthma/bronchospasm or shock; propofol if hemodynamically stable. Adjust for comorbidities.

Succinylcholine vs rocuronium?

Succinylcholine acts faster (~45s vs ~60s) and wears off quickly. Rocuronium is preferred when succinylcholine is contraindicated (hyperkalemia, neuromuscular disease, burns > 24h).

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