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Triglyceride levels in serum/plasma (mass concentration)

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

This test measures the amount of triglycerides, a type of fat found in your blood, which can help assess your risk for heart disease and other health conditions.

Quick summary

["Triglycerides are a key indicator of heart health and metabolic well-being."]

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

Key facts at a glance

LOINC
3045-2
Short code
Trigl+IDL Ester SerPl-mCnc
Synonyms
Trigl+IDL Ester SerPl-mCnc
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

Why It’s Done

Your healthcare provider may order this test if you have symptoms of high triglycerides, such as abdominal pain, rapid heartbeat, or unexplained fatigue. It’s also commonly checked as part of routine blood work to monitor overall heart health, especially if you have conditions like diabetes, obesity, or high cholesterol.

What to Expect

A blood sample is taken from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The test involves a simple venipuncture procedure, and you can resume normal activities afterward.

Preparation

No special preparation is needed for this test. However, if you’re taking certain medications (like cholesterol-lowering drugs), your provider may advise you to stop them temporarily or adjust timing to avoid interfering with results.

What the Results Mean

Triglyceride levels help doctors evaluate your risk for cardiovascular diseases, pancreatitis, and metabolic disorders. While specific reference ranges vary by lab, high levels may signal the need for lifestyle changes, dietary adjustments, or medical interventions.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Triglycerides (Serum/Plasma)

Frequently asked questions

How often should I get this test?
Your provider will determine how frequently you need this test based on your health status, risk factors, and other medical conditions. Routine checks may occur every few years or more often if you have specific concerns or conditions.
What are typical reference ranges?
Reference ranges for triglycerides vary by lab, but generally, normal levels are below 150 mg/dL (1.7 mmol/L). Levels between 150–199 mg/dL (1.7–2.2 mmol/L) are considered borderline high, and levels 200 mg/dL (2.3 mmol/L) or higher are considered high.
Can lifestyle changes affect my triglyceride levels?
Yes, lifestyle modifications such as a balanced diet low in sugars and refined carbs, regular physical activity, weight management, and avoiding excessive alcohol can significantly lower triglyceride levels. Consult your healthcare 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