see also: [[Amputation]] see: [Impact of time and distance on outcomes following tourniquet use in civilian and military settings: a scoping review](https://www.sciencedirect.com/science/article/abs/pii/S0020138323000360) #procedures - beware tourniquet pressure < arterial pressure: can cause venous backflow and ↑ bleeding - beware release of tourniquet → can cause [[hyperkalemia]] and [[rhabdomyolysis]] and drop in blood pressure ***Tourniquet application times:*** | situation | ischaemia time | | ----------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | finger tourniquet | 30-45 min | | limb tourniquet | aim <2 hours<br>- in pts with tourniquet <2 hours, 28% required fasciotomy<br>- <2% of pts had transient nerve palsy at level where tourniquet applied<br>- studies have shown tremendously low rate of limb sacrifice because of tourniquet itself |