A member asked:

What is the risk of the thallium injected during a persantine stress test?

A doctor has provided 1 answer

Thallium: Thallium poisoning is extemely rare. Radioactive thallium used in the test is thallium 201 and is used in a small dose that dissipates with about a 69 to 73 hr halftime. The radiation is generally no problem unless it is additive in a person who has had lot of radiation exposure.

Answered 12/1/2014

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