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Serum or Plasma Triglyceride Concentration (Qualitative or Quantitative)

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

This test measures the amount of triglycerides, a type of fat, in your blood. Triglycerides are a key part of your lipid profile and can help assess your risk for heart disease and other health conditions.

Quick summary

["Triglycerides help identify heart health risks and support overall lipid management."]

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

Key facts at a glance

LOINC
23486-4
Short code
T gondii Ab Ser Ql LA
Synonyms
T gondii Ab Ser Ql LA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
la
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

Triglycerides are a form of fat found in your blood. They’re a major component of your lipid profile, which includes cholesterol and other fats. High levels of triglycerides can increase your risk for heart disease, stroke, and other serious health issues. This test helps doctors monitor your lipid levels and guide treatment plans for managing conditions like high cholesterol or metabolic disorders.

How the Test Works

Your blood sample is collected and sent to a lab, where it’s analyzed using a specialized test method, such as enzymatic or chemiluminescent immunoassay. The lab measures the concentration of triglycerides in your serum or plasma. Results are typically reported as a qualitative assessment (qualitative) or a quantitative measurement (if a numeric range is provided).

What to Expect Before the Test

No special preparation is usually needed for this test, but you may be asked to fast for 8–12 hours before your blood draw if your doctor recommends it. This helps ensure more accurate results. If you’re taking certain medications, like blood pressure or cholesterol drugs, let your healthcare provider know before the test.

What the Results Mean

Results can help your doctor determine whether your triglyceride levels are within a healthy range or if further action is needed. While exact reference ranges vary by lab, high levels may trigger discussions about lifestyle changes, diet, exercise, or medication adjustments to improve heart health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Triglycerides (Serum/Plasma)

Frequently asked questions

What causes high triglyceride levels?
High triglyceride levels can be caused by genetics, poor diet (high in sugars or unhealthy fats), obesity, physical inactivity, certain medications (like beta-blockers or diuretics), and metabolic disorders. Lifestyle factors, such as smoking or excessive alcohol consumption, can also contribute.
Can low triglyceride levels be harmful?
Low triglyceride levels are generally not harmful unless they’re extremely low (below 50 mg/dL). In rare cases, very low levels may indicate underlying conditions like liver disease or malnutrition, so it’s best to discuss results with your doctor.
How often should I get this test?
Your doctor will determine how often you need this test based on your overall health, risk factors, and medical history. Typically, it’s part of routine lipid screenings every 1–5 years, depending on your age and health status.
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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