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Test Code LAB1110 Vitamin K1, Serum

Important Note

Patient must fast for 12-14 hours prior to collection. For infants, draw prior to next feeding.

Additional Codes

Mayo Test Code: VITK1

Useful For

Assessing circulating vitamin K1 concentration

Method Name

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

Specimen Type

Serum


Specimen Required


Patient Preparation: Fasting overnight (12-14 hours) (infants-collect prior to next feeding).

Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 2 mL

Collection Instructions: Within 2 hours of collection, centrifuge and aliquot serum into a plastic vial.


Specimen Minimum Volume

0.75 mL

Specimen Stability Information

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

Reject Due To

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK

Reference Values

<18 years: Not established

≥18 years: 0.10-2.20 ng/mL

Day(s) Performed

Monday through Friday

Report Available

2 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

Forms

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