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Test Code 102

Test Details

Triglycerides (TG)

Triglycerides are composed of three fatty acids attached to glycerol that function as fat storage (adipose tissue) or may be used for energy. Triglycerides are the primary lipid component in chylomicrons and very low-density lipoproteins but are also found in other lipoproteins.

Methodology

Enzymatic colorimetric

Patient Preparation

8-12 hour fast prior to collection. Patient may drink water only.

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)

Alternate Specimen

1.0 mL EDTA plasma (0.5 mL minimum) collected in plasma separator tube (Pearl Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 10 days

Lab Values

Lab Values

Triglycerides (TG)

  • Optimal: <150 mg/dL
  • Borderline: 150-200 mg/dL
  • Increased Risk: >200 mg/dL
Test Details
Clinical Significance

Clinical Significance

Triglycerides (TG)

  • Elevated TG is a secondary risk factor for CVD.1-2
  • Elevated levels increase CVD risk by altering lipoprotein metabolism. Elevated levels may:1-2
    • Enhance the formation of small dense LDL particles.
    • Contributes to low levels of large HDL particles.

References:

  1. Goff DC Jr, Lloyd-Jones DM, Bennett G, et al. 2013 ACC/AHA Guideline on the Assessment of Cardiovascular Risk: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation. 2014;129(25 Suppl 2):S49-73.
  2. Stone NJ, Robinson J, Lichtenstein AH, et al. 2013 ACC/AHA Guideline on the Treatment of Blood Cholesterol to Reduce Atherosclerotic Cardiovascular Risk in Adults: A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines. Circulation. 2014;129(25 Suppl 2):S49-73.
Lab Values
Treatment Options

Treatment Options

Triglycerides (TG)

  • Lifestyle modification
  • Statins
  • Niacin
  • Fibrates
  • Fish oil
Clinical Significance