10 doctors weighed in:
How will a radioactive iodine uptake test diagnose goiter?
10 doctors weighed in

Dr. Patrick Melder
ENT - Head & Neck Surgery
7 doctors agree
In brief: It will not
An i131 test does not "diagnose" goiter.
Goiter is just a term meaning an enlarged and/or nodular thyroid. An i131 scan is a "fucntional" scan. It is used to determine if a nodule within the thyroid is "hot" - picks up a lot of iodine: hyper-metabolic. A "cold" nodule does not concentrate the iodine: hypometabolic. There is a lower risk of thyroid cancer in "hot" nodules.

In brief: It will not
An i131 test does not "diagnose" goiter.
Goiter is just a term meaning an enlarged and/or nodular thyroid. An i131 scan is a "fucntional" scan. It is used to determine if a nodule within the thyroid is "hot" - picks up a lot of iodine: hyper-metabolic. A "cold" nodule does not concentrate the iodine: hypometabolic. There is a lower risk of thyroid cancer in "hot" nodules.
Dr. Patrick Melder
Dr. Patrick Melder
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Dr. Steven Chmielewski
Diagnostic Radiology
2 doctors agree
In brief: Determines size...
And function. The uptake portion of the exam will usually be able to tell if the gland is under or over active.
The images help determing if a nodule is hot or cold, which help determine what the nodule is. The test should be reviewed with thyroid function tests and ultrasound when possible.

In brief: Determines size...
And function. The uptake portion of the exam will usually be able to tell if the gland is under or over active.
The images help determing if a nodule is hot or cold, which help determine what the nodule is. The test should be reviewed with thyroid function tests and ultrasound when possible.
Dr. Steven Chmielewski
Dr. Steven Chmielewski
Thank
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