Skip to content

Total Cholesterol with Triglyceride Subtotal Concentration

Published: August 9, 2026Updated: August 16, 2026

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.

Quick summary

["Your cholesterol and triglyceride levels are key indicators of heart health."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

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?
What does a low triglyceride level mean for my overall health, and should I talk to my doctor if my result comes back lower than the expected reference range?
How often should I get this test?
Can I eat or drink anything before this triglyceride blood test, including coffee, juice, or water, or will I need to fast for a certain number of hours beforehand?
What are the risks of this blood test?
Blood tests like this are generally safe. The most common risk is a slight bruise, swelling, or discomfort at the needle site. Rarely, there may be a reaction to the blood draw, such as fainting or excessive bleeding.
  1. 1
  2. 2
  3. 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.

Medical Disclaimer

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