A VQ scan is a two-part test that providers most commonly use to diagnose a blood clot in your lungs (pulmonary embolism). It measures the airflow (ventilation) and blood flow (perfusion) in your lungs.

Jun 15, 2025 · How Does a VQ Scan Work? The VQ scan is a nuclear scan. It measures airflow, called ventilation, and blood flow, called perfusion, in your lungs. The V and Q make up a math equation …

A V/Q scan consists of two imaging tests that measure the air and blood flow in your lungs. It's most often used to check for a blood clot (pulmonary embolism).

Normal pulmonary ventilation and perfusion (V/Q) scan. The nuclear medicine V/Q scan is useful in the evaluation of pulmonary embolism.

Apr 25, 2025 · A ventilation-perfusion scan is also called a VQ scan. A VQ scan is a pair of imaging scans that take pictures of your lungs. This is done to check how well air flows into your lungs and …

A ventilation-perfusion (VQ) scan is a diagnostic test using radioisotopes to evaluate lung perfusion and ventilation. Ventilation-perfusion scan consists of two portions, a ventilation (V) scintigraphy and a …

Mar 24, 2024 · What Is a VQ Scan? A VQ scan is actually two separate imaging procedures performed together to create a complete picture of lung function. The “V” stands for ventilation, which measures …

Aug 1, 2025 · A VQ scan, also known as a ventilation-perfusion scan, is a diagnostic imaging test that assesses lung function. This non-invasive procedure evaluates how air moves into and out of your …

What is a VQ scan? A ventilation-perfusion (VQ) scan uses radioactive material (low-risk) to examine the air flow (ventilation) and blood flow (perfusion) in your lungs.

Feb 26, 2018 · A pulmonary ventilation/perfusion (or VQ) scan is a series of two lung scans. The scans are either performed together or one after the other, but are often referred to as one procedure. One …