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Vitamin K1, Serum
Ordering Recommendation
Use for nutritional assessment of vitamin K1.
New York DOH Approval Status
Specimen Required
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
Methodology
Quantitative High Performance Liquid Chromatography (HPLC)
Performed
Sun-Fri
Reported
2-5 days
Reference Interval
0.22-4.88 nmol/L
Interpretive Data
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.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Laboratory Developed Test (LDT)
Note
Hotline History
CPT Codes
84597
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0099225 | Vitamin K1 | 9622-2 |
Aliases
- K1, Vitamin
- Phylloquinone
- phytonadione
