Vitamin K1 Test
A fat-soluble vitamin essential for blood clotting and bone health.
What is Vitamin K1?
A fat-soluble vitamin essential for blood clotting and bone health.
Vitamin K1 Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 0.100 – 2.20 ng/mL |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your Vitamin K1 result may mean
Can reflect fat-malabsorption disorders, antibiotic use, or anticoagulant therapy.
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
Sources
Related Vitamins & Nutrients biomarkers
Markers commonly tested alongside Vitamin K1.
Frequently asked
No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.
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