Use for nutritional assessment of vitamin K1.
Quantitative High Performance Liquid Chromatography
Patient should fast overnight for 12 hours and should not consume alcohol for 24 hours prior to blood draw.
Plain red or serum separator tube. Also acceptable: Lavender (EDTA) or pink (K2EDTA).
Protect from light during collection, storage, and shipment. Separate serum or plasma from cells within 1 hour of collection. Transfer 1 mL serum or plasma to an ARUP Amber Transport Tube. (Min: 0.6 mL)
Frozen. Separate specimens must be submitted when multiple tests are ordered.
Any specimen other than serum or EDTA plasma. Hemolyzed specimens.
After separation from cells: Ambient: Unacceptable; Refrigerated: 1 month; Frozen: 6 months
Vitamin K concentration is reported as nanomoles per liter (nmol/L). To convert concentration to nanograms per milliliter (ng/mL), multiply the result by 0.45.
Laboratory Developed Test (LDT)
|Component Test Code*||Component Chart Name||LOINC|
- K1, Vitamin