~2-4 HOURS - TCCC, ERC, PCC

- Continue and/or initiate above hypothermia interventions.
- Upgrade hypothermia enclosure system to a well-insulated enclosure system using a hooded sleeping bag or other readily available insulation inside the enclosure bag/external vapor barrier shell. Best: Improvised hypothermia wrap with high-quality insulation with cold-rated sleeping bag combined with heat source, internal vapor barrier, outer impermeable enclosure.
- Continue to use a battery-powered warming device to deliver blood at a flow rate up to 150 ml/min hr with a 38°C output temperature. (Table 2).
- Convert to continuous temperature monitoring.
  - Minimum: Scheduled temperature measurement with vital sign evaluations.
  - Better: Continuous forehead dot monitoring.
  - Best: Continuous core temperature monitoring.
- When using the HPMK Ready-Heat Blanket, perform frequent skin checks to monitor for contact burns.