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 …

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 …

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).

Jun 15, 2025 · A VQ scan is short for Lung or Pulmonary Ventilation (V) and Perfusion (Q) Scans. It’s an imaging test that measures air and blood flow in your lungs.

Dec 2, 2025 · The ventilation scan is performed using radio-isotope labeled aerosols like technetium-99m DTPA delivered to the patient through a non-rebreathing mask, with the …

Apr 25, 2025 · 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 how well blood flows through your lungs.

The ventilation part of the test looks at the ability of air to reach all parts of the lungs, while the perfusion part evaluates how well blood circulates within the lungs. In physiology, perfusion is …

Aug 1, 2025 · What Is a VQ Scan and Why Is It Performed? A VQ scan, also known as a ventilation-perfusion scan, is a diagnostic imaging test that assesses lung function. This non …

Dec 9, 2025 · A VQ scan is a test used to show the air flow and blood flow in your lungs. It is usually done if your healthcare provider thinks you have a pulmonary embolism (blood clot).

Nov 12, 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, …