Tourniquet Time Limits: Safe Duration and Monitoring Protocol

Maximum continuous tourniquet time: 2 hours. Beyond this, risk of irreversible muscle/nerve injury, compartment syndrome, and amputation rises sharply.

If Prolonged Use Is Unavoidable

• Release for 5–10 minutes every 30–60 minutes if tactical situation allows (re-assess bleeding).
• Document application time prominently on patient and tourniquet.
• Convert to pressure dressing ASAP when bleeding controlled.

Key Principles

• Apply high and tight on limb; wide (≥1.5") commercial device preferred.
• Tighten until arterial bleeding stops—no tighter.
• Never cover tourniquet; keep visible for monitoring.
• Do not loosen to "check" bleeding—only planned intermittent release.

Based on TCCC/NATO guidelines. Civilian EMS may have shorter limits (1–1.5 hrs) due to faster definitive care access.