Thromboelastography After Heparinase Panel, Whole Blood
A whole-blood clotting test that uses heparinase to evaluate clot formation and identify the effect of heparin or other anticoagulants.
["This test helps assess how your blood clots and whether anticoagulant effects are contributing to bleeding risk."]
Key facts at a glance
- LOINC
- 69552-8
- Short code
- TEG after heparinase pnl Bld
- Synonyms
- TEG after heparinase pnl Bld
- Category
- liver
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- 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
What is this test?
Thromboelastography, or TEG, is a blood test that measures how your blood forms and breaks down a clot. Heparinase is added to the sample to neutralize heparin so the remaining clotting pattern can be evaluated.
Why might I need this test?
Your clinician may order this test when there is unexplained bleeding, clotting, or concern about how heparin or another anticoagulant is affecting you. It may also be used during major surgery or other high-risk periods to guide blood-clotting treatment.
How is the test performed?
A whole-blood sample is placed in a TEG instrument, which continuously records clot formation, clot strength, and clot breakdown. Heparinase is added, and the resulting pattern is compared with the laboratory's validated method to assess persistent anticoagulant effects and overall clotting function.
How do I prepare for the test?
This test usually requires no fasting or special preparation. Tell your healthcare team about all anticoagulant and bleeding-risk medicines you are taking, but do not stop or change any prescribed medication without medical advice.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal results may indicate a persistent heparin effect, reduced clot strength, impaired platelet or fibrinogen function, or another clotting disorder. The pattern can help explain bleeding or clotting risk and may guide treatment with blood products or anticoagulant reversal. Results should be interpreted with your medications, medical history, and other laboratory tests.
Short name
TEG after heparinase
Frequently asked questions
Does a TEG after heparinase diagnose a specific bleeding disorder?
What does heparinase do in this test?
Can I take my blood-thinning medicine before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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