# AI tells user to submerge heatstroke victim in ice water only up to waist, but full immersion to neck (excluding head) is the gold standard for exertional heatstroke

- **ID:** `emergency/heatstroke-ice-immersion-neck`
- **Domain:** emergency
- **Category:** life_safety
- **Error Code:** `HEATSTROKE-IMMERSION-ERR-001`
- **Verification:** ai_generated
- **Fix Rate:** 88%

## Root Cause

AI incorrectly recommends partial immersion, likely from confusion with cold-water immersion safety protocols; the evidence-based treatment for exertional heatstroke (core temp >40°C / 104°F) is immediate cold-water immersion up to the neck (head out) in water at 1-15°C (35-59°F), which reduces core temperature at ~0.35°C/min, the fastest known method.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| Journal of Athletic Training 2020 Exertional Heat Stroke Guidelines | active | — | — |
| NATA Position Statement 2021 | active | — | — |
| Wilderness Medical Society Clinical Practice Guidelines 2023 | active | — | — |

## Workarounds

1. **Prepare a tub or large container with cold water (1-15°C / 35-59°F). Add ice if available. Gently lower the victim into the water up to the neck, supporting the head above water. Continuously stir the water to maintain cooling. Remove when core temp reaches 38.9°C (102°F).** (90% success)
   ```
   Prepare a tub or large container with cold water (1-15°C / 35-59°F). Add ice if available. Gently lower the victim into the water up to the neck, supporting the head above water. Continuously stir the water to maintain cooling. Remove when core temp reaches 38.9°C (102°F).
   ```
2. **If a tub is unavailable, use a tarp or plastic sheet to create a makeshift immersion pool: place victim on tarp, raise edges to contain water, fill with cold water and ice. Alternatively, use a kiddie pool or livestock watering tank.** (82% success)
   ```
   If a tub is unavailable, use a tarp or plastic sheet to create a makeshift immersion pool: place victim on tarp, raise edges to contain water, fill with cold water and ice. Alternatively, use a kiddie pool or livestock watering tank.
   ```

## Dead Ends

- **Submerge victim only up to the waist to avoid shock or aspiration** — Partial immersion slows cooling dramatically; only ~0.1°C/min compared to 0.35°C/min for full immersion, increasing risk of organ damage and death. (90% fail)
- **Use ice packs on armpits, groin, and neck instead of immersion** — Ice packs have limited surface area and cool at ~0.1°C/min; they are inferior to cold-water immersion and may delay definitive treatment. (85% fail)
- **Pour cold water over the victim's head first to cool the brain** — The head has high blood flow but cooling the head alone is ineffective; whole-body immersion is required. Pouring water over head may cause aspiration. (75% fail)