Diagnostic tests

Vitamin K1 blood test

A Vitamin K1 blood test measures the level of vitamin K in your blood. Vitamin K is a fat-soluble vitamin that is essential for the normal clotting of blood. It is also involved in the metabolism of bone and the synthesis of certain proteins.

The test is usually performed using a sample of blood taken from a vein in the arm.

Abnormally low levels of vitamin K in the blood (known as vitamin K deficiency) can be caused by a variety of factors, including a diet low in vitamin K, malabsorption disorders, liver disease, and certain medications. Symptoms of vitamin K deficiency may include easy bruising and bleeding, including bleeding gums, nosebleeds, and heavy menstrual periods.

Abnormally high levels of vitamin K in the blood are rare and can be caused by excessive intake of supplements or certain medical conditions. It is important to discuss any concerns about your vitamin K levels with a healthcare provider.

This page is provided for educational and informational purposes only and does not constitute the provision of medical advice or professional services. The information provided should not be used for diagnosing or treating a health problem or disease, and those seeking personal medical advice regarding any of the tests and conditions referenced above are advised to consult with a licensed clinician. Always seek the advice of your qualified health provider regarding a medical condition and do not disregard professional medical advice or delay in seeking it because of any information on this page. If you think you may have a medical emergency, immediately call 911 or go to the nearest urgent care center or hospital.

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Book a lab collection at your home or office with Getlabs.

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