A member asked:

How is the thyroid scan performed?

7 doctors weighed in across 3 answers
Dr. Mike Bowman answered

Specializes in ENT and Head and Neck Surgery

2 types of "scans": Thyroid ultrasounds are quick and painless. They are done with some jelly on the neck and sound waves are used to visualize the thyroid and surrounding tissues. Nuclear medicine scans are done by swallowing a small amount of radioactive iodine. After some time, the iodine finds its way to thyroid tissue and "lights up" on the scan. This is painless, safe, but does take a while. Best wishes.

Answered 1/15/2014


Dr. Susan Wingo answered

Specializes in Endocrinology

2 kinds of nuc scans: In addition to ultrasounds, which are sometimes referred to as scans, there are two different kinds of nuclear thyroid scans done. One kind uses radioactive iodine (i-123) and is given as a pill. The other uses technitium (tc-99) and is given as an intravenous injection.

Answered 2/5/2012


Dr. Thomas Heston answered

Specializes in Family Medicine

Radiotracer + gamma: For a nuclear thyroid scan, you are administered a radiotracer either by mouth (typical for radioiodine) or IV (for tc99m pertechnetate). Some time is allowed to pass in order to let the thyroid take up the radiotracer. Your thyroid is then imaged using a gamma camera. For a pertechnetate study, it takes about an hour. For a radioiodine study, it may take a couple of days to allow adequate uptake.

Answered 6/10/2014



Related Questions

A member asked:

Is there a kind of hyper thyroidism that resolves without treatment ?

3 doctors weighed in across 2 answers

A member asked:

Can thyroidism affect my monthly period?

A doctor has provided 1 answer

A member asked:

Anyone know anything about hashimoto's thyroidism symptoms?

5 doctors weighed in across 2 answers