Lesson
Ketamine Field Framing
Objective: Place ketamine in the correct prehospital decision frame — potent tool for pain or sedation only when authorized, with airway vigilance.
Why This Matters
Many systems added ketamine for analgesia, DAI/RSI, or severe agitation. It is powerful and unforgiving when mis-applied. This lesson is framing only: indications themes, monitoring, and pitfalls — not a formulary.
Common EMS Contexts (Service-Dependent)
- Analgesia for severe pain when protocol includes ketamine.
- Sedation / behavioral pathways for extreme agitation when authorized.
- Airway induction agent in some RSI protocols — advanced training required.
Clinical Themes (Education)
- Dissociative anesthetic properties at higher ranges; analgesia at protocol analgesic ranges.
- Airway reflexes may be relatively preserved compared with some agents — still not an excuse to ignore airway.
- Emergence reactions, hypersalivation, laryngospasm risk discussions appear in training — know your system’s prep (suction ready).
- Hemodynamics often more stable than pure sympatholytic agents in teaching comparisons — still monitor BP.
Safety Habits
- Indication clear and protocol-approved.
- Weight-based math with second check.
- Continuous monitoring: SpO₂, EtCO₂ when available, ECG, BP.
- BVM and suction staged before administration for sedation-level uses.
Field Pitfalls
- Using ketamine for mild pain when simpler options fit protocol better.
- Under-monitoring after IM injection for agitation.
- Confusing analgesic vs induction dosing ranges — protocol only.
Practice
Read your service ketamine protocol line-by-line: indications, absolute cautions, monitoring. Related: Fentanyl, Dosing safety.
Sources & Further Study
- Your formulary and medical direction for ketamine.
Education only. Apply learning within your protocols and medical direction. This is not clinical care guidance.
Check Your Understanding
Answer from this lesson only. Education practice — not a certification exam.