Skip to content

Triglyceride (Serum or Plasma) Concentration

Published: August 9, 2026Updated: August 17, 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 function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 17, 2026Editorial policy

Key facts at a glance

LOINC
52126-0
Short code
Acid glycerol lysis Time RBC
Synonyms
Acid glycerol lysis Time RBC
Category
glucose
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
4.2
Ref high
5.9
Critical range
2 N/A – 7 N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
85041
SNOMED
900000000000003001
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test to evaluate your risk for heart disease, diabetes, or other metabolic disorders. It’s often checked alongside cholesterol levels or if you have symptoms like fatigue, unexplained weight changes, or high blood pressure.

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. The blood sample is drawn from a vein in your arm.

What the Results Mean

Higher-than-normal triglyceride levels may suggest conditions like obesity, diabetes, or thyroid disorders. Lower-than-normal levels might be seen in rare genetic conditions or certain medications. Your results will be compared to general reference ranges provided by your lab.

Common Causes of Abnormal Results

Triglyceride levels can rise due to diet (high in sugar or unhealthy fats), alcohol use, physical inactivity, or underlying health conditions like diabetes or kidney disease. They can also drop due to certain medications, liver disease, or genetic factors.

Reference range

Adult males: 4.2-5.9; Females: 3.8-5.1 x 10^12/LN/A

Specimen: whole-blood

No special preparation required. Stay well hydrated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Triglycerides

Frequently asked questions

What does it mean if my triglyceride levels are high?
High triglyceride levels increase your risk of developing heart disease or having a heart attack. They may also raise the risk of pancreatitis, a serious condition where your pancreas becomes inflamed. Your provider may recommend lifestyle changes, medications, or further testing if levels are elevated.
How often should I get this test?
The frequency depends on your health status. If you have risk factors (like high cholesterol or diabetes), your provider may recommend testing every 1–2 years. If you have no risk factors, it may be checked less often, such as during routine check-ups.
Can diet or exercise affect my triglyceride levels?
Yes! Reducing sugar and refined carbohydrates, eating more healthy fats (like those in fish or nuts), and staying active can lower triglycerides. Avoiding alcohol and maintaining a healthy weight also helps. Always follow your provider’s advice for personalized guidance.
  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 17, 2026. · Read our editorial policy