Ventilation-Perfusion Scan (V/Q Scan)

A V/Q scan is a medical test that assesses how well air reaches different parts of your lungs (ventilation) and how effectively blood flows through them (perfusion). It involves inhaling a small amount of radioactive gas to show ventilation and injecting a radioactive tracer to evaluate blood flow. These images help doctors detect issues like blood clots, lung problems, or blood flow restrictions by comparing air and blood distribution in the lungs, providing valuable information to guide diagnosis and treatment.