The time it takes to bleed out from a critical bleed is often less than the fastest time it takes for an ambulance to arrive, so having provisions to stop severe bleeding readily available and easy to access can be vital in keeping casualties alive.
This is an example of the care gap and why any premises where there is a risk of a critical bleed injury occuring should be prepared with enhanced first aid provisions, such as a Critical Injury Pack compliant to BS8599-1, or having bleed control products included alongside basic first aid provisions.