Test Details

Mnemonic

VK

Ordering Code

3420980

CPT-4 Code(s)

84597

Specimen Information

Patient Preparation

Patient should fast overnight for 12 hours and should not consume alcohol for 24 hours prior to blood draw.

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, remove serum from cells within 1 hour of collection and send 1.0 mL serum in an amber screw capped vial. PROTECT FROM LIGHT.

Alternate Specimen

Plasma: Plasma EDTA
Serum: Red top

Minimum Volume

0.6 mL

Transport Temperature

Frozen

Rejection Criteria

Hemolysis

Stability

Room temperature: Unacceptable
Refrigerated: 30 days
Frozen: 6 months

Methodology

Chromatography
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Reference Range

0.22 - 4.88 nmol/L
Vitamin K is reported as nanomoles/liter (nmol/L).
To convert concentration to nanograms per milliliter
(ng/mL) multiply the result by 0.45.
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Performing Laboratory

ARUP
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New York DOH Approval Status

Yes
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