Field medications · Adult & pediatric guidance · ALS

Ketamine

10-second priorities

ALS
Start here
Use the OCEMS analgesia indication for eligible patients age 15+.
Do not miss
This guide does not establish pediatric analgesia or general sedation authority.
Next decision
Check exclusions, concentration and administration instructions; reassess airway and perfusion.

Priority checkpoints. Full criteria, doses and exceptions below.

OCEMS analgesia for eligible patients age 15 and older; pediatric exclusion is explicit.

OCEMS source summary · Updated 2026-09-30

Safety sections checked September 30, 2026 · verified with limits. Existing numeric regimens retain their original source context.

Also known as: Ketalar. NIH terminology identifies ketamine injectable Ketalar products at different strengths. This does not establish stock, dose or substitution.

FIELD REFERENCE

Full criteria & treatment guidance

Indications

  • Moderate–severe pain (4–10) when the PR-070 analgesia criteria are met; this is not general procedural-sedation authority.

Contraindications & local exclusions

  • OCEMS PR-070: psychosis history, pregnancy, ketamine allergy, age below 15, or GCS below 14. Alcohol/drug intoxication is a relative contraindication: limited non-significant intoxication may be authorized after base contact. The injection label also excludes patients for whom a significant BP rise would be a serious hazard.

Precautions

  • Monitor consciousness, BP, pulse oximetry and rhythm; dissociation, tachycardia, hypertension and respiratory depression can occur. Use the analgesic route-specific instructions, not an anesthetic-induction regimen.
  • These are selected safety checks, not a complete prescribing monograph. Product labeling and OCEMS authorization answer different questions; confirm the actual product, patient population and applicable order.

Check before giving

  • PR-70 excludes pregnancy, ketamine allergy, psychosis history, and GCS below 14.
  • Concurrent alcohol or drug intoxication is a relative contraindication. Consider treatment only after base contact confirms the intoxication is not significant and the patient is not lethargic or otherwise impaired.

Use in OCEMS

  • PR-70 addresses moderate–severe pain (4–10) when fentanyl is not a safe or appropriate choice. Examples include opioid intolerance/refusal, hypotension, or concern about airway/ventilatory status.
  • This is the analgesia procedure, not a field dissociative-sedation or pediatric ketamine protocol.

Adult / adolescent

Adult / adolescent
Indication / routeDose & limits
IV — preferred when practical0.1 mg/kg slowly over 1–2 minutes, maximum 10 mg. May repeat once after 15 minutes.
IM0.5 mg/kg, maximum 50 mg. May repeat once after 15 minutes.
IN1 mg/kg, maximum 100 mg. The procedure does not list an IN repeat dose.

Pediatric

  • Age younger than 15 is a contraindication in PR-70. No pediatric analgesia dose is supplied by this OCEMS procedure or I-20.
  • Do not extrapolate these doses to a child. Use an authorized pediatric analgesia pathway and base direction.

Pediatric dosing availability

  • PR-70 excludes patients younger than 15. No OCEMS pediatric analgesia dose is provided.
Pediatric dosing availability
WeightOCEMS pediatric dose
Any weightNo general OCEMS pediatric dose is listed; follow the applicable order or medical direction.

Preparation & reassessment

  • Concentration is determined by the provider agency; confirm route-appropriate stock before drawing up the dose.
  • Record weight, indication, pain before/after, intoxication assessment, response, and ongoing vital signs, SpO₂, consciousness, and cardiac rhythm. Watch for dissociation, tachycardia, or hypertension.

UNDERSTAND THE CARE

Why the indication cannot be borrowed from another ketamine use

Ketamine is described here for the local analgesia procedure. Knowledge of another jurisdiction’s sedation or airway use does not expand this guide’s authority. Check the patient’s age, clinical eligibility and exclusions against the cited procedure before choosing a dose.

Teaching diagram: Eligibility: Local analgesia indication and age 15+.; Exclusions: Use the complete PR-70 conditions.; Preparation: Correct concentration and administration method.; Response: Pain, consciousness, ventilation and perfusion.
Ketamine assessment map. A teaching map of the linked guidance; it is not a complete treatment algorithm.

Applying the guidance

The actual preparation and administration method must match the local analgesia instructions. Keep the concentration and intended dose visible and record prior pain treatment. Continue assessing pain, consciousness, ventilation and perfusion after administration. The purpose of reassessment is to describe both symptom relief and whether the patient tolerates the intervention.

Dose, concentration and volume

Dose, concentration and volume. First establish the authorized dose and its cap. Read the actual concentration using consistent units. Dose divided by concentration gives volume: mg ÷ (mg/mL) = mL. Route, rate, repeat limits and authority must be checked separately.
First establish the authorized dose and its cap. Read the actual concentration using consistent units. Dose divided by concentration gives volume: mg ÷ (mg/mL) = mL. Route, rate, repeat limits and authority must be checked separately.

Diagram text & teaching checkpoints

Eligibility
Local analgesia indication and age 15+.
Exclusions
Use the complete PR-70 conditions.
Preparation
Correct concentration and administration method.
Response
Pain, consciousness, ventilation and perfusion.

Sources for this explanation

Original OCMedic teaching synthesis of the references below. Educational expansion updated ; this is not a new independent clinical-review date. Source-specific dates and limitations remain in the full guidance.

About OCMedic · Editorial approach & corrections

Apply the route-specific repeat rule

The procedure describes separate IV, IM and IN analgesia regimens. Read the repeat instruction attached to the selected route rather than carrying one route’s permission into another. The IV and IM rows include a permitted repeat; the IN row does not supply an IN repeat dose. Persistent pain alone does not fill that missing instruction.

Before treatment, explain why fentanyl is not safe or appropriate for this patient and document the relevant PR-70 eligibility assessment. The relative intoxication provision is conditional and requires the stated base-hospital process; a patient being awake is not a substitute for the complete assessment.

For example, after IN treatment a patient still reports substantial pain. Reassess pain, consciousness, ventilation and perfusion, retain the dose and administration time, and use the applicable medical-direction process for further care. Do not convert the persistent symptom into an improvised repeat or sedation regimen. At handoff, identify analgesia as the purpose and name the route actually used.

Source: Ketamine Analgesia.

Explore this guide

Related guides

Drug label / general safety

Checked September 30, 2026. Research verification is not independent clinical review.

Product labelKETAMINE HYDROCHLORIDE injection ↗

OCEMS sources

I-15 revised March 31, 2026; I-20 revised March 26, 2026. Both implemented April 1, 2026. See linked condition-specific sources.
Source checked September 16, 2026.
Summary updated 2026-09-30.

I-15Adult / Adolescent Standing Order Drug Guide ↗PR-70Ketamine Analgesia ↗I-20Pediatric Medication Volume Dose by Weight ↗

This summary does not replace the complete policy, current system notices, or clinical judgment.

Base-contact conditions

PR-70 permits the relative alcohol/drug intoxication exception only after base contact when intoxication is not significant and the patient is not lethargic or otherwise impaired. It is not a blanket exception for significant intoxication and not a universal order requirement for other eligible analgesia patients.

Source basis: PR-70 contraindications and relative-intoxication wording checked in current linked source and cached OCR.

Independent OCMedic summary. Open cited source ↗ Sources, review limits & corrections

Browse the field reference

Back to top