Test directory: Vitamin K

Ordering Code4320
Test NameVitamin K
AliasPhylloquinone
Vitamin K1
Preferred SpecimenPlasma
Preferred ContainerEDTA, K2 (Lavender)
Other Specimen/ContainerSerum in SST (Gold)
Optimum Volume1.5 mL
Collection InstructionsFasting for a minimum of 8 hours required. Patient should refrain from eating liver and taking multivitamins or vitamin K at least 24 hours before sample collection.
Handling InstructionsCentrifuge within 1 hour of collection. Immediately separate plasma or serum from the cells into an amber transport tube to protect from light. Freeze. Do not thaw. Samples received frozen but not protected from light are acceptable.
Transport RequirementsOahu: Frozen
Airline: Frozen
Specimen StabilityAmbient: 24 Hours
Refrigerated: 24 Hours
Frozen: 3 Months
Rejection CriteriaGrossly hemolyzed, Grossly lipemic, Received ambient or refrigerated
Avail. StatNO
Analytic Time8 Days
MethodologyChromatography/Mass Spectrometry
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of November 21, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Vitamin KALLSee report.