Total triglycerides in serum/plasma (mass concentration)
This test measures the amount of triglycerides, a type of fat found in your blood, using a sample of your serum or plasma.
["Triglycerides help your body store and use energy, but high levels may raise your risk of heart disease."]
Key facts at a glance
- LOINC
- 12951-0
- Short code
- Trigl SerPl Calc-mCnc
- Synonyms
- Trigl SerPl Calc-mCnc
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- true
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- calculated
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What Triglycerides Tell Us About Your Health
Triglycerides are a key part of your blood lipid profile, along with cholesterol. They’re made from fats and carbohydrates your body uses for energy. High triglyceride levels can contribute to plaque buildup in your arteries, increasing the risk of heart attack or stroke. This test helps doctors assess your risk for cardiovascular disease and guide treatment plans, such as diet or medication adjustments.
How the Test Works
Your blood sample is drawn and processed to separate serum or plasma. The triglycerides are then measured using a specialized lab technique, often an enzymatic method that converts triglycerides into a form that can be detected and quantified precisely.
Why This Test Might Be Ordered
Doctors may order this test if you have risk factors for high triglycerides, such as obesity, diabetes, high alcohol intake, or a family history of heart disease. It’s also part of routine lipid panels to monitor cholesterol and fat levels, especially if you’re taking medications like statins or fibrates.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if your doctor recommends it. Fasting helps provide a more accurate reading of your triglyceride levels. Avoiding alcohol, heavy meals, or strenuous exercise for that time can also help.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Triglycerides
Frequently asked questions
What does a high or low triglyceride level mean?
How often should I get this test?
Can lifestyle changes affect triglyceride levels?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy