What are the side effects of lung perfusion scan?

Usually none: The dose of radioactivity given is small, and the test is considered safe and harmless. If a woman is pregnant, the use of any radioactive material must be carefully weighed as to potential benefits vs risks to the fetus.

Usually nothing: Side effects are very rare if the scan is performed properly. There is a minimal amount of radiation involved. An IV is required. In rare cases a person may have an allergy to the tracer. See: http://sgoti.Ws/rpnyr8.