Thyroid Scan and Uptake - The patient swallows a capsule that has radioactive iodine. The thyroid in the neck normally gathers up the iodine to make thyroid hormone. So, after a few hours, the radioactive iodine accumulates in the thyroid and makes a picture under the nuclear camera that outlines the thyroid and also measures the efficiency of the thyroid. Additional measurements are made 1 to 3 hours later and often 24 hours later (the next day) to check the activity of the thyroid for normal, increased (hyperthyroid) or decreased (hypothyroid) gland. The picture image also can show cysts and tumors.
(The parathyroid glands: There are four tiny parathyroid glands behind the thyroid that control calcium in the blood stream and there is also a scan that checks the Thyroid and Parathyroid glands at the same time, that can show the function of these tiny parathyroid glands when the Calcium in the blood or the Parathyroid hormone in the blood are abnormal. The Thyroid scan and Uptake is several scans of the neck over 1 hour and sometimes at 2 hours, after a tiny injection of radioactive material that goes mostly to the parathyroid glands.)
A Bone Scan is used for many reasons including:
American Board of Radiology-Diagnostic Radiology
American Board of Nuclear Medicine
Fellow of the American College of Radiology
Society of Interventional Radiology
Society of Skeletal Radiology.
Nuclear Medicine, Mt.Sinai Medical Center, Miami Beach
Diagnostic Radiology, Jackson Memorial Hospital, University of Miami.
Internal Medicine, United States Public Health Hospital, Baltimore, Md.
Chicago Medical School, Rosalind Franklin University, N. Chicago, Il.