Carboxylated Vitamin K-dependent Protein C (Anticoagulant Protein C)
This test measures the level of carboxylated vitamin K-dependent protein C in your blood, an important protein that helps prevent blood clots from forming. It may be used to assess your risk for blood clotting disorders or monitor treatment for conditions like protein C deficiency.
Helps evaluate blood clotting risk and monitor protein C levels for clotting disorders.
Key facts at a glance
- LOINC
- 78847-1
- Short code
- JWH-210 carboxypentyl CtO Ur Cfm-mCnc
- Synonyms
- JWH-210 carboxypentyl CtO Ur Cfm-mCnc
- Category
- chemistry
- Sample
- urine
- Container
- Sterile urine container
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- confirm
- Specimen volume
- 10 mL
- Stability
- Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have a history of blood clots, certain blood disorders, or if you’re taking medications that affect blood clotting. It could also be part of a broader evaluation for conditions like disseminated intravascular coagulation (DIC) or inherited clotting disorders.
How the Test Works
The test uses a blood sample to measure the amount of carboxylated protein C, a form of the protein that’s activated by vitamin K. The method typically involves a specialized immunoassay to detect and quantify this specific protein.
Sample Collection and Preparation
A blood sample is drawn from a vein, usually in your arm. The sample is processed to separate plasma, where the protein C levels are measured. This test is usually done on fresh plasma to ensure accurate results.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to stop certain medications (like anticoagulants) for a short time if directed by your provider. Avoiding strenuous activity or eating heavy meals before the test can help ensure consistency in your blood sample.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low levels of carboxylated protein C can indicate a higher risk of blood clots, especially in people with inherited or acquired clotting disorders. It may also help diagnose or monitor conditions like protein C deficiency, liver disease, or certain types of autoimmune disorders. High levels might be seen in some inflammatory or infectious conditions, though this is less common.
Short name
Protein C (Carboxylated)
Frequently asked questions
What Does a Low or High Result Mean?
Does This Test Require Dietary Restrictions?
How Often Should I Get 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