Ventilation-perfusion Scan

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Definition

A pulmonary ventilation/perfusion scan involves two nuclear scan tests. These tests use inhaled and injected radioactive material (radioisotopes) to measure breathing (ventilation) and circulation (perfusion) in all areas of the lungs.


Alternative Names

V/Q scan; Ventilation/perfusion scan; Lung ventilation/perfusion scan


How the test is performed

A pulmonary ventilation/perfusion scan is actually two tests. These tests may be performed separately or together.

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