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Serum Triglyceride Concentration

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

This test measures the amount of triglycerides, a type of fat, in your blood serum. Triglycerides are an important part of your overall lipid (fat) profile.

Quick summary

["Triglycerides help your body store and use energy, but high levels can increase your risk of heart disease."]

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

Key facts at a glance

LOINC
2096-6
Short code
Cholest/Trigl SerPl
Synonyms
Cholest/Trigl SerPl
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 This Test Matters

Your doctor may order this test to check for high cholesterol or lipid disorders, monitor heart health, or evaluate conditions like diabetes, obesity, or metabolic syndrome. It’s often part of a broader lipid panel that also includes cholesterol measurements.

What to Expect Before the Test

No special preparation is needed, but you may be asked to fast for 8–12 hours before the test if it’s part of a fasting lipid panel. If you’re not fasting, your results may be compared differently to reference ranges.

How the Test Works

A blood sample is drawn from a vein in your arm. The blood is processed to separate serum (the liquid part after clotting), and the triglycerides are measured using a laboratory method that detects their concentration.

What the Results Mean

Results are typically reported in milligrams per deciliter (mg/dL). High triglyceride levels (above reference ranges) may signal an increased risk of cardiovascular issues, while very low levels might raise concerns about nutrient deficiencies or metabolic issues.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Triglycerides

Frequently asked questions

What causes high triglyceride levels?
High triglycerides can result from diet (e.g., high in sugar or refined carbs), obesity, physical inactivity, certain medications (like beta-blockers or diuretics), or underlying conditions like diabetes or hypothyroidism. Low levels may occur with malnutrition, liver disease, or certain genetic disorders.
How do I lower my triglyceride levels?
Lifestyle changes such as improving diet (reducing saturated fats and sugars), increasing exercise, and losing weight can help. If needed, your doctor may recommend medications like fibrates or omega-3 fatty acids.
Can I still eat fatty foods if my triglycerides are slightly elevated?
Moderation is key. While you don’t need to avoid all fats, limit highly processed or sugary foods. Consult your doctor or dietitian for personalized advice based on your results.
  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