Vitamin K1 in serum (phylloquinone) (Vitamin K1, Phylloquinone, Serum)
The test determines the level of vitamin K1 (phylloquinone) in blood - a key vitamin necessary for normal blood coagulation and participation in bone tissue metabolism. Prescribed to detect vitamin K1 deficiency and absorption disorders, which can occur with liver diseases, intestinal diseases, bile duct conditions, and with certain medications.
Biomaterial: Venous blood
- Draw blood fasting
- Exclude fatty food and alcohol 24 hours before
- Avoid intense physical activity 24 hours before
Medications:
If possible, discontinue medications affecting coagulation 24-48 hours before
If discontinuation is not possible - indicate medications taken
- Bleeding tendency (gums, nosebleeds, bruises)
- Prolonged coagulation indicators
- Frequent bruising without trauma
- Liver and bile duct diseases
- Fat malabsorption syndrome
- Prolonged antibiotic or anticoagulant use
- Suspected vitamin K deficiency
- Preparation for surgical interventions
Recommended for patients with coagulation disorders, liver/intestinal/pancreatic diseases, fat-soluble vitamin deficiency, children with suspected vitamin K hypovitaminosis, patients taking anticoagulants
Low vitamin K1 - possible deficiency - fat absorption disorder - liver or intestinal disease - drug effects
Normal level - sufficient vitamin K1 supply
Elevated level - rare, possible with vitamin preparations
Important: Result interpretation and correction determined by physician.
Independent vitamin K intake without prescription is not recommended.
