Lima Memorial Health System Logo
Approximate ER WAIT TIME
19

Health Library

Triglyceride level
     
Print-Friendly
Bookmarks

Triglyceride level

Triacylglycerol test

 

The triglyceride level is a blood test to measure the amount of triglycerides in your blood. Triglycerides are a type of fat.

 

Your body makes some triglycerides. Triglycerides also come from the food you eat. Extra calories are turned into triglycerides and stored in fat cells for later use. If you eat more calories than your body needs, your triglyceride level may be high.

A test for high blood cholesterol levels is a related measurement.

How the Test is Performed

 

A blood sample is needed. Most of the time, blood is drawn from a vein located on the inside of the elbow or the back of the hand.

 

How to Prepare for the Test

 

You should not eat for 8 to 12 hours before the test.

Alcohol and some medicines can interfere with blood test results.

  • Make sure your health care provider knows what medicines you take, including over-the-counter drugs and supplements.
  • Your provider will tell you if you need to stop taking any medicines before you have this test.
  • DO NOT stop or change your medicines without talking to your provider first.

 

How the Test will Feel

 

You may feel slight pain or a sting when the needle is inserted. You may also feel some throbbing at the site after the blood is drawn.

 

Why the Test is Performed

 

Triglycerides are usually measured together with other blood fats. Often it is done to help determine your risk of developing heart disease. A high triglyceride level may lead to atherosclerosis, which increases your risk for heart attack and stroke.

A very high triglyceride level may also cause swelling of your pancreas (called pancreatitis).

 

Normal Results

 

Results may indicate:

  • Normal: Less than 150 mg/dL
  • Borderline high: 150 to 199 mg/dL
  • High: 200 to 499 mg/dL
  • Very high: 500 mg/dL or above

Normal value ranges may vary slightly among different laboratories. Talk to your provider about the meaning of your specific test results.

The examples above show the common measurements for results for these tests. Some laboratories use different measurements or may test different specimens.

 

What Abnormal Results Mean

 

High triglyceride levels may be due to:

  • Cirrhosis or liver damage
  • Diet low in protein and high in carbohydrates
  • Underactive thyroid
  • Nephrotic syndrome (a kidney disorder)
  • Other medicines, such as female hormones
  • Poorly controlled diabetes
  • Disorder passed down through families in which there are high amounts of cholesterol and triglycerides in the blood

Overall, the treatment of elevated triglyceride levels focuses on increased exercise and changes in the diet. Drugs to lower triglyceride levels may be used to prevent pancreatitis for levels above 500 mg/dL.

Low triglyceride levels may be due to:

  • Low fat diet
  • Hyperthyroidism (overactive thyroid)
  • Malabsorption syndrome (conditions in which the small intestine does not absorb fats well)
  • Malnutrition

 

Considerations

 

Pregnancy can affect test results.

 

 

References

Arnett DK, Blumenthal RS, Albert MA, et al. 2019 ACC/AHA guideline on the primary prevention of cardiovascular disease: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Circulation. 2019;140(11):e596-e646. PMID: 30879355 pubmed.ncbi.nlm.nih.gov/30879355/.

Chen X, Zhou L, Hussain MM. Lipids and dyslipoproteinemia. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. St Louis, MO: Elsevier; 2017:chap 17.

Genest J, Libby P. Lipoprotein disorders and cardiovascular disease. In: Zipes DP, Libby P, Bonow RO, Mann DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019:chap 48.

Grundy SM, Stone NJ, Bailey AL, et al. 2018 AHA/ACC/AACVPR/AAPA/ABC/ACPM/ADA/AGS/APhA/ASPC/NLA/PCNA Guideline on the management of blood cholesterol: executive summary: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Circulation. 2019;139(25):e1046-e1081. PMID: 30565953 pubmed.ncbi.nlm.nih.gov/30565953/.

Ridker PM, Libby P, Buring JE. Risk markers and the primary prevention of cardiovascular disease. In: Zipes DP, Libby P, Bonow RO, Mann, DL, Tomaselli GF, Braunwald E, eds. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 11th ed. Philadelphia, PA: Elsevier; 2019:chap 45.

Robinson JG. Disorders of lipid metabolism. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 26th ed. Philadelphia, PA: Elsevier; 2020:chap 195.

BACK TO TOPText only

 
  • Cholesterol and triglyceride test

    Cholesterol and triglyceride test

    Animation

  • Blood test

    Blood test

    illustration

  • Cholesterol and triglyceride test

    Animation

  • Blood test

    Blood test

    illustration

A Closer Look

 

    Talking to your MD

     

      Self Care

       

        Tests for Triglyceride level

         
         

        Review Date: 7/30/2020

        Reviewed By: Thomas S. Metkus, MD, Assistant Professor of Medicine and Surgery, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. Editorial update 09/28/2021.

        The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
        © 1997- adam.comAll rights reserved.