Nuclear medicine imaging procedures are noninvasive and with the exception of intravenous injections are usually painless medical tests that help physicians diagnose and evaluate medical conditions. Nuclear medicine procedures are used in diagnosing and treating certain illnesses these procedures use radioactive materials called radiopharmaceuticals examples of diseases treated with nuclear medicine procedures are hyperthyroidism thyroid cancer lymphomas and bone pain from some types of cancer. Procedure and preparation for a nuclear medicine exam the patient is given a small amount of radioisotope either orally or by injection to enhance the visualization of selected organs or vascular structures. Radiology and imaging sciences nuclear medicine procedures dexa stands for dual energy x ray absorptiometry or densitometry dexa is a procedure that measures the amount of bone muscle and or body fat
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