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Test Code Billings Clinic: 6995 Mayo: VITK1 Vitamin K1, Serum

Reporting Name

Vitamin K1, S

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Assessment of circulating vitamin K1 concentration.

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)


Specimen Required


Patient Preparation:

Fasting: 12 hours, required; Infants should have specimen collected before next feeding

Supplies: Amber Frosted Tube, 5 mL (T915)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Amber vial

Specimen Volume: 2 mL

Collection Instructions:

1. Within 2 hours of collection, centrifuge the specimen.

2. For red top tubes, immediately aliquot serum into an amber vial (preferred). Serum may sit on whole blood cells up to a maximum of two hours before aliquoting.

3. For serum gel tubes, immediately aliquot serum into an amber vial (preferred). Serum may sit on gel at ambient temperature for a maximum of 24 hours or refrigerated for a maximum of 7 days before aliquoting.


Specimen Type

Serum

Specimen Minimum Volume

0.75 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 30 days
  Ambient  30 days
  Frozen  30 days

Reject Due To

Gross hemolysis OK
Lipemia Reject
Gross icterus OK

Reference Values

<18 years: Not established

≥18 years: 0.10-2.20 ng/mL

Interpretation

Low vitamin K1 concentrations in the serum are indicative of insufficiency and poor vitamin K1 status.

Day(s) Performed

Monday through Friday

Report Available

2 to 5 days

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

84597

LOINC Code Information

Test ID Test Order Name Order LOINC Value
VITK1 Vitamin K1, S 9622-2

 

Result ID Test Result Name Result LOINC Value
62167 Vitamin K1, S 9622-2

Forms

If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.