Thyroid Hormone Tests: How It Is Done
Content provided by Healthwise
How It Is Done
Blood test
The health professional taking a sample of your blood will:
- Wrap an elastic band around your upper arm to stop the flow of blood. This makes the veins below the band larger so it is easier to put a needle into the vein.
- Clean the needle site with alcohol.
- Put the needle into the vein. More than one needle stick may be needed.
- Attach a tube to the needle to fill it with blood.
- Remove the band from your arm when enough blood is collected.
- Put a gauze pad or cotton ball over the needle site as the needle is removed.
- Put pressure on the site and then put on a bandage.
Heel stick
A heel stick is used to obtain a blood sample from a newborn. The baby's heel is pricked with a sharp instrument (lancet) and several drops of blood are collected.
| Last updated: | December 03, 2007 |
|---|---|
| Author: | Caroline Rea, RN, BS, MS |
| Reviewed By: | Caroline S. Rhoads, MD - Internal Medicine, David C.W. Lau, MD, PhD, FRCPC - Endocrinology & Metabolism |
| Editors: | Maria G. Essig, MS, ELS, Pat Truman, MATC |
© 1995-2007, Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.
Search
Where Does it Hurt?
If you're experiencing aches and pains we can help you find answers. Find out what your symptoms mean for your health.
