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Test Name:
Vitamin K1


  • SBMF No:
    44551
  • Performance Lab Name:
    ARUP Laboratories
  • Test Mnemonic:
    VIT-K
  • ABN:
    Not required
  • CPT Code:
    84597
  • LOINC Code:
    9622-2
  • Ref Lab Test No:
    0099225
  • Also Known As:
    K1 Vitamin
  • Spec Type:
    Serum
  • Spec Container:
    Gold top (SST) or red top (serum) tube
  • Alt Spec Type:
    Plasma
  • Alt Spec Container:
    Lavender top (EDTA) tube
  • Pref Vol:
    2.0 mL
  • Min Vol:
    1.2 mL
  • Fasting:
    Yes
  • Patient Prep:
    Patient should fast overnight for 12 hours and should not consume alcohol for 24 hours prior to blood draw
  • Spec Collect:
    Routine venipuncture
    Protect from light
  • Spec Process:
    Serum sample tubes, clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum or plasma to light-protected (amber) plastic tube and freeze
  • Spec Store Transport:
    Frozen
    Protect from light
  • Spec Stability:
    After separation from cells:
    Room temperature (20-30°C): Unacceptable
    1 month refrigerated (2-8°C)
    6 months Frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles
  • Spec Reject:
    Any specimen other than serum or EDTA plasma
    Hemolyzed sample
  • Spec Remarks:
    Separate samples must be submitted when multiple tests are ordered
    Protect from light within one hour of collection and during storage and shipment
  • Methodology:
    Quantitative High Performance Liquid Chromatography (HPLC)
  • Clinical Significance:
    Refer to:
    ARUP Consult | The Physician's Guide to Laboratory Test Selection and Interpretation
  • Reference Range:
    0.10-2.20 ng/mL
  • Day Run:
    Sun, Tue-Sat
  • Time Reported:
    3-7 days
  • Test Type:
    CHEMISTRY