Thyroid Fine Needle Aspiration in Ultrasound
Your local doctor has scheduled a Thyroid FNA to be done in Ultrasound on __________________ at ________ ( )am, ( )pm. Please report to the G3/3 Radiology desk (Atrium elevators to the 3rd floor).
Our doctors will explain the procedure to you, and ask you to sign a formal consent.
What is a thyroid FNA?
A thyroid FNA (fine needle aspiration) is the most common method for evaluating a thyroid nodule or mass. A very fine, thin needle is inserted into the thyroid to aspirate cells and fluid from the thyroid nodule or mass. The sample is evaluated by the cytology lab.
What should I expect during a thyroid FNA?
The doctor will use ultrasound (a machine that sends sound waves through the skin and creates images on a TV screen) to check the site of the nodule or mass. Once the nodule is located, the doctor will clean the area with soap. Numbing medicine will be injected under the skin at the site. A small needle will be inserted into the nodule with ultrasound guidance. Most often 3 samples are needed. The samples will be sent to a cytopathologist to see if enough cells were aspirated. If not, further samples will be obtained. The cytopathologist will know if there are enough cells for evaluation, but the doctor will not get results for 3-4 days.
After the local anesthetic wears off, you may feel some pain at the site. Your pain should not be severe, but patients have described it as sore at the site. No medicines are prescribed for this soreness. If you are having soreness at the site, we suggest the use of Tylenol®. The soreness should go away within the first 24 hours.
What can I do after the procedure?
Thyroid FNA is considered safe, and almost never results in complications. You can resume your normal routine, as you are able, after the thyroid FNA.
When do I call the doctor?
- If you feel dizzy, faint, or light-headed.
- If your pain around the site gets worse rather than better 2-3 days later.
- If you are not feeling well, and have a fever greater than 100.4° F (38° C).
- If you develop redness and swelling around the site.
Monday through Friday (7:30am - 4:30pm) call the Ultrasound department (608) 262-5279 or nurse (608) 261-5634.
If you live out of the area, please call 1 (800) 323-8942.
Evenings and weekends, call your local doctor or go to your local emergency room.
The information provided should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Any duplication or distribution of the information contained herein is strictly prohibited.
Last Updated: 05/14/2013
Copyright © 05/14/2013 University of Wisconsin Hospitals and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#6431
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