Skip to content

Triglyceride concentration in serum or plasma

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

This test measures the amount of triglycerides, a type of fat found in your blood. Triglycerides help your body store and use energy.

Quick summary

["Triglycerides are an important part of your lipid profile, which helps assess your heart health."]

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

Key facts at a glance

LOINC
9619-8
Short code
Trigl Plr-mCnc
Synonyms
Trigl Plr-mCnc
Category
glucose
Sample
fluid
Container
Sterile tube
Units
N/A
Fasting
true
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
2-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
Hemolysis max
300
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test to check your overall health, monitor risk factors for heart disease, or evaluate conditions like high cholesterol, diabetes, or metabolic disorders. It’s often included in routine blood tests or when symptoms suggest fat-related issues.

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 it’s part of a lipid panel. If you’re unsure, ask your provider. Avoid smoking or drinking alcohol for a few hours beforehand.

During the Test

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a slight pinch, but it’s usually over quickly. The process takes just a few minutes, and you can resume normal activities afterward.

What the Results Mean

Results help your provider determine if your triglyceride levels are within a healthy range or if they’re too high or too low. High levels may increase heart disease risk, while very low levels might indicate other health concerns.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Triglycerides (TG)

Frequently asked questions

What Are Common Causes of High or Low Triglycerides?
High triglycerides can result from diet (e.g., excess sugar or alcohol), obesity, diabetes, or certain medications. Low triglycerides are less common but may occur with malnutrition, liver disease, or genetic conditions.
How Often Should I Get This Test?
Your provider will recommend how often to check your triglycerides based on your health status. Typically, adults with no risk factors may get it every 5 years, while those with risk factors (like high cholesterol) may need it more often.
Can I Lower My Triglycerides Naturally?
Yes! Lifestyle changes like eating a balanced diet (reducing saturated fats and sugars), exercising regularly, and avoiding alcohol can help lower triglycerides. Ask your provider for personalized advice.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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