A Ventilation-Perfusion (V/Q) Scan is an imaging test used to assess the air flow (ventilation) and blood flow(perfusion) in the lungs, primarily to detect conditions like pulmonary embolism (PE).
Indications for V/Q Scan:
● Pulmonary embolism (PE): To diagnose blood clots in the lungs when CT pulmonary angiography is contraindicated.
● Chronic lung diseases: To evaluate the functioning of the lungs in patients with COPD, asthma, or interstitial lung disease.
● Pre-surgical evaluation: For patients who need surgery involving lung tissue removal.
How V/Q Scan Works:
● A small amount of radioactive material is injected into the bloodstream, and a radioactive gas is inhaled. A special camera detects how well air and blood flow through the lungs, creating images.
Normal Range:
● Normal ventilation and perfusion should show uniform distribution of air and blood flow in the lungs.
Abnormal Test Significance:
● Mismatch between ventilation and perfusion indicates pulmonary embolism, lung tissue damage, or other lung abnormalities.
Price in India:
Approx. ₹5,000 – ₹10,000 for a V/Q scan.
Frequently Asked Questions
Is a V/Q scan safe?
Yes, the test involves a low dose of radiation, which is considered safe for most patients.
How long does it take to perform a V/Q scan?
The procedure typically takes about 30–60 minutes.
Disclaimer: A V/Q scan is used to evaluate lung function and diagnose conditions like pulmonary embolism, but further tests may be needed for definitive results.
How HealthPil Can Help:
At HealthPil, we connect you with pulmonologists and radiologists who can interpret your V/Q scan results and help guide treatment for lung conditions.