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The Curious Bag
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A three phase bone scan is a diagnostic imaging test. It is typically performed in a hospital setting. The scan is performed if there is suspicion of osteomyelitis (bone infection), according to the University of Tennessee Medical Center.
Uses
In addition to identifying cases of osteomyelitis, three phase bone scans may also be performed to look for bone damage from fractures, tumors or degenerative diseases, such as arthritis.
Procedure
The procedure involves injecting a radioactive tracer into a vein. A specialized camera that can record the radiation takes pictures as it moves along the body. Images are typically taken immediately after injection, three to four hours later and sometimes again after 24 hours.
Results
If there is no damage from disease or trauma, the bone images will have a uniform gray appearance. If there is damage, bright or dark spots may appear on the bone, in which case further testing may be required, reports Drugs.com.
Side Effects
Possible side effects from the three phase bone scan include an allergic reaction to the injection, rash or swelling.
Warning
Three phase bone scans are strongly discouraged for women during pregnancy and while breast-feeding to avoid exposing a fetus or infant to radiation.
Source:
University of Tennessee Medical Center: Three Phase Bone Scan
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