Measures Vitamin K levels in the body.
Long Description: Vitamin K is a fat soluble vitamin that is essential to health and wellbeing. The largest concentration is found in green vegetables. The use of numerous drugs, prescription and recreational as well as many various forms of illness can lead to Vitamin K deficiencies. Vitamin K toxicity is rare, although possible when supplementing with synthetic forms. Certain forms of synthetic Vitamin K have been banned in the U.S.
Recommended with Vitamin K
Is Fasting Required? No
More Information: http://www.questdiagnostics.com/testcenter/TestDetail.action?ntc=36585