PIVKA-II Blood Test: Normal Range, Meaning and Interpretation
The PIVKA-II blood test measures an abnormal clotting protein linked to Vitamin K deficiency and liver disease. The normal range is below 40 mAU/mL. High PIVKA-II meaning often relates to liver cancer or impaired Vitamin K metabolism. This marker is important for detecting hepatocellular carcinoma and monitoring treatment response.
Contents
Result interpretation PIVKA-II
What your result means based on common reference ranges
PIVKA-II levels below 40 mAU/mL indicate normal liver protein synthesis and adequate Vitamin K status.
Moderately elevated PIVKA-II levels may suggest early liver dysfunction or mild Vitamin K deficiency affecting coagulation pathways.
Significantly high PIVKA-II levels strongly indicate hepatocellular carcinoma or severe disruption of liver synthetic function.
Very low PIVKA-II levels reflect optimal liver function and efficient Vitamin K-dependent clotting factor production.
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What is PIVKA-II?
PIVKA-II (Protein Induced by Vitamin K Absence) is an abnormal form of prothrombin produced when Vitamin K is insufficient or liver cells are dysfunctional. This blood test is widely used as a PIVKA-II liver cancer marker, especially for detecting Hepatocellular Carcinoma. Unlike general liver enzymes such as ALT or AST, PIVKA-II reflects specific defects in protein synthesis. It is particularly useful in oncology and hepatology for distinguishing cancer from benign liver conditions like cirrhosis or hepatitis. Monitoring PIVKA-II levels helps evaluate tumor progression and treatment effectiveness.
Reference ranges
Causes of abnormal values
Causes of low PIVKA-II
- • Adequate Vitamin K intake — proper clotting protein formation
- • Healthy gut microbiome — sufficient endogenous Vitamin K2 production
- • Effective cancer treatment — reduced tumor activity lowers abnormal protein levels
- • Vitamin K supplementation — restores normal prothrombin synthesis
Causes of high PIVKA-II
- • Hepatocellular carcinoma — tumor cells fail to complete prothrombin synthesis
- • Vitamin K deficiency — insufficient cofactor for clotting protein activation
- • Warfarin therapy — medication blocks Vitamin K metabolism intentionally
- • Obstructive jaundice — impaired bile flow reduces Vitamin K absorption
- • Long-term antibiotic use — gut microbiota disruption lowers Vitamin K production
- • Liver cirrhosis — damaged liver impairs protein synthesis
PIVKA-II in combination with other markers
Possible symptoms
- •Easy bruising
- •Frequent nosebleeds
- •Jaundice
- •Right upper abdominal discomfort
- •Dark urine
- •Pale stools
When to see a doctor
Consult a doctor if PIVKA-II levels exceed 40 mAU/mL or show a rising trend over time. Immediate evaluation is required for values above 100 mAU/mL, especially with symptoms like jaundice or bleeding.
What to do if abnormal
- Review medications, especially anticoagulants like Warfarin
- Test AFP for comparison with PIVKA-II vs AFP interpretation
- Schedule liver imaging (ultrasound, CT, or MRI)
- Assess Vitamin K intake and nutritional status
- Monitor levels regularly if under treatment
The information on this page is intended for general understanding of test results and does not replace medical consultation. Accurate interpretation requires considering other blood markers and individual factors.
Content is based on medical literature and used within the PulseBook analytical system.
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