Nuclear Medicine Scan

Tc99m Thyroid Scan


Evaluation of the thyroid gland.

The Procedure:

  1. You will receive an injection in your hand or arm. The injection is not a dye or contrast. The dose is a low level radioactive material and patients rarely have a reaction. If you are an inpatient, we may use your INT or IV site for the injection.
  2. The scan takes approximately 1 hour.

Inpatient and Outpatient Preparation Instructions:

  1. There is no preparation for this test.


For your convenience we may schedule more than one test on the same day. This can be confusing because the tests may have different preparation instructions. If you are an outpatient and don’t understand the instructions please call Radiology. If you are an inpatient the nursing staff will correlate your test with the preparation.

For Your Information:

The Radiologist (x-ray doctor) will read the scan and send the results to your doctor.


There is a charge for the isotope injection that must be ordered before the scan. If it is necessary to cancel the scan, please call the Radiology department at 419-394-3335 extension 3528 as soon as possible.

Grand Lake Health System
200 St. Clair Street, St. Marys,
Ohio 45885-2400
| 1-419-394-3335 | 1-877-564-6897