Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get Started
About our e-newsletters
- Free e-newsletters
- Mayo Clinic expertise
- We do not share your e-mail address
Housecall, our weekly general-interest e-newsletter, keeps you up to date on a wide variety of health topics with timely, reliable, practical information, recipes, blogs, questions and answers with Mayo Clinic experts and more. Our biweekly topic-specific e-newsletters also include blogs, questions and answers with Mayo Clinic experts, and other useful information that will help you manage your health.
Housecall Archives
Mayo Clinic Housecall
Stay up to date on the latest health information.
What you get
- Free weekly e-newsletter
- Mayo Clinic expertise
- Recipes, tools and other helpful information
- We do not share your e-mail address
What you can expect
By Mayo Clinic staff
During the procedure
A cholesterol test is a blood test, usually done in the morning since you'll need to fast for the most accurate results. Blood is drawn from a vein, usually from your arm. Before the needle is inserted, the puncture site is cleaned with antiseptic and an elastic band is wrapped around your upper arm. This causes the veins in your arm to fill with blood.
After the needle is inserted, a small amount of blood is collected into a vial or syringe. The band is then removed to restore circulation, and blood continues to flow into the vial. Once enough blood is collected, the needle is removed and the puncture site is covered with a pressure wrap.
The entire procedure will likely last a couple of minutes. It's relatively painless.
After the procedure
There are no special precautions you need to take after your cholesterol test. You should be able to drive yourself home and do all your normal activities. You may want to bring a snack to eat after your cholesterol test is done, if you've been fasting.
It may take a few days for you to get your results back. Your doctor should explain to you what the results of your test mean. It's likely your doctor will want to retest you in several weeks or months if your test shows your cholesterol levels are high. Before starting any treatment based only on an abnormal cholesterol test, it's common to get several tests done over a period of time to ensure an accurate diagnosis.
- Executive summary. Based on Third report of the expert panel on the detection, evaluation and treatment of high blood cholesterol in adults (adult treatment panel III). National Heart, Lung, and blood Institute. http://www.nhlbi.nih.gov/guidelines/cholesterol/atp3xsum.pdf and other sources. Accessed Jan. 5, 2009. Adapted by Mayo Foundation for Medical Education and Research.
- High blood cholesterol. National Heart Lung and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/Hbc/HBC_all.html. Accessed Jan. 5, 2009.
- Cholesterol. American Association for Clinical Chemistry. http://www.labtestsonline.org/understanding/analytes/cholesterol/test.html. Accessed Jan. 5, 2009.
- Women and cholesterol. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=185. Accessed Jan. 5, 2009.
- Daniels SR, et al. Lipid screening and cardiovascular health in childhood. Pediatrics. 2008;122:198.
