A blood volume test is a nuclear lab procedure used to measure the volume (amount) of blood in the body.
A hemo (blood)-dynamic (flow) test is a nuclear imaging procedure that evaluates the function of the heart and circulation.
A multigated acquisition scan is a noninvasive diagnostic test used to evaluate the pumping function of the ventricles (lower chambers of the heart).
A pharmacological nuclear stress test is a diagnostic test used to evaluate blood flow to the heart.
A nuclear exercise stress test is a diagnostic test used to evaluate blood flow to the heart.
A PET study is a diagnostic test used to evaluate blood flow to the heart.
Frequently Asked Questions About Nuclear Imaging
How long does a nuclear imaging test take?
It depends on the type of test, though most take at least an hour or more. For example, a lung scan may take only half an hour, while a heart study may take two hours. In some cases, more than one test is needed, such as for cardiac studies.
How is the tracer administered?
Typically, tracers are injected into a vein, though some tracers may be taken orally.
Are there any side effects from these studies?
Nuclear imaging tests involve very low amounts of radiation, similar to the exposure received in a routine chest X-ray. Therfore, no significant adverse or allergic reactions from the drug are encountered.
What are the benefits of nuclear imaging tests?
Nuclear imaging tests are very sensitive and can detect many diseases at early stages. Unlike MRI and CT scans that give only structural information, nuclear imaging tests provide information about the functional status and viability of different organs and tissues.
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Reviewed: 09/11
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