When a blood pressure cuff is used as tourniquet how will inflation of the to above patients systolic affect flow?

Inflating the blood pressure cuff to above the patient's systolic pressure will completely occlude blood flow in the affected limb. This is because the pressure exerted by the cuff will be greater than the pressure exerted by the heart, preventing blood from flowing through the arteries. This effect is temporary and blood flow will return once the cuff is deflated.

Tourniquets are commonly used in medical procedures to create a bloodless field, allowing for better visibility and precision during surgery. By temporarily stopping blood flow, tourniquets help to reduce bleeding and improve the surgeon's ability to visualize and repair tissues.

It is important to note that tourniquets should only be used for short periods of time, as prolonged use can lead to tissue damage and other complications. Additionally, tourniquets should only be applied by trained medical professionals who understand the risks and benefits of their use.