Total Cholesterol with Triglyceride Subtotal Concentration
This test measures your total cholesterol level and provides a breakdown of your triglyceride concentration, which helps assess your risk for heart disease and other cardiovascular conditions.
["Your cholesterol and triglyceride levels are key indicators of heart health."]
Key facts at a glance
- LOINC
- 66769-1
- Short code
- Trigl Prt-sCnc
- Synonyms
- Trigl Prt-sCnc
- Category
- glucose
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- true
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- 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
Your triglyceride level matters because triglycerides are a type of fat in your blood that your body uses for energy, and having too much of this fat can raise your risk of heart disease, stroke, and inflammation of the pancreas over time. Measuring it gives you and your doctor a clear picture of your overall cardiovascular and metabolic health.
Cholesterol and triglycerides are types of fats in your blood. High levels can build up in your arteries, increasing the risk of heart disease, stroke, or other health problems. This test helps doctors monitor and manage these risks.
The test works by measuring the amount of triglycerides in a small sample of your blood. A healthcare professional draws blood from a vein in your arm, and the sample is sent to a laboratory where the triglyceride level is measured in mg/dL, often as part of a lipid panel that also checks your cholesterol.
Blood is drawn from a vein in your arm. The lab analyzes the serum or plasma sample to measure total cholesterol and the amount of triglycerides present. The triglyceride result is often reported separately as a subtotal concentration.
Before the test, your doctor may ask you to fast for 9 to 12 hours, which means avoiding all food and beverages except water. You should also avoid alcohol for at least 24 hours beforehand, and let your doctor know about any medications, vitamins, or supplements you take, since some of them can affect your results.
No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test if triglycerides are being measured specifically for a lipid panel. Always follow your healthcare provider’s instructions.
Your results are reported in mg/dL and fall into general categories: below 150 mg/dL is considered normal, 150 to 199 mg/dL is borderline high, 200 to 499 mg/dL is high, and 500 mg/dL or above is very high. Your doctor will look at these numbers together with your cholesterol values, medical history, and lifestyle to decide whether you need treatment or changes to your diet and exercise habits.
Total cholesterol and triglyceride levels are used together to evaluate your cardiovascular health. While exact reference ranges vary by lab, high levels may signal the need for lifestyle changes or medical interventions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
None
Frequently asked questions
What does a high triglyceride level mean?
How often should I get this test?
What are the risks of this blood test?
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