The triglyceride level test helps measure the amount of triglycerides in your blood. Triglycerides are a type of fat, or lipid, found in the blood. The results of this test help your doctor determine your risk of developing heart disease. Another name for this test is a triacylglycerol test.
Also Known As: TG, TRIG
Why Get Tested:
- This is done to evaluate the cases of atherosclerosis (Coronary artery disease).
- This is done to evaluate the turbid serum (milky).
- Triglyceride is part of lipid profile.
- Triglyceride advised in a patient with suspected fat metabolism disorder.
When to get tested :
- Screening: as part of a regular health exam with a lipid profile.
- when no risk factors for heart disease are present.
- once every four to six years in adults.
- children should have a lipid profile screening at least once between the ages of 9 and 11 and then again between the ages of 17 and 21.
- This test is done on the serum.
- Fasting sample is preferred. Advised the patient to fast for 12 to 14 hours.
- This test can be done on plasma as well.
- Can store serum or plasma at 4 °C for 4 days (can keep for 5 to 7 days).
- 40 to 160 mg /dL
Critical values are:
- Desirable = < 150 mg /dL.
- Borderline high = 150 to 199 mg /dL.
- High = 200 to 499 mg /dL.
- Very high = > 500 mg /dL.
- Critical value >400 mg/dL
Increased Triglycerides values are seen in:
- Nephrotic syndrome.
- Liver diseases.
- Alcoholism (alcoholic cirrhosis).
- Diabetes Mellitus, uncontrolled.
- Glycogen storage disease (Von Gierke disease).
- Familial hypertriglyceridemia.
- Anorexia nervosa.
- Down’s syndrome.
- Myocardial infarction.
Decreased Triglycerides level is seen in:
- Congenital α-β- lipoproteinemia.
Table showing the summary of characteristics of the lipoproteins
|Size (diameter nm)||>70.0||4 to 10||19.6 to 22.7||25 to 70|
|Electrophoretic mobility||Origin||α – region||β – region||Pre – β region|
|Molecular weight||0.4 to 30 x 109||3.6 x 109||2.75 x 109||5 to 10 x 109|
|Synthesized in||Intestine||Intestine and liver||Intravascular||Liver and intestine|
|Composition by weight in %|
|Cholesterol esterified||5||38||49||11 to 14|
|Cholesterol unesterified||2||10||13||5 to 8|
|Triglycerides||84||9||11||44 to 60|
|Phospholipids||7||22||27||20 to 23|
|Proteins||2||21||23||4 to 11|
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