Important Construction Updates About Our Campus Transformation — Read More
Search All

Lab Test Dictionary

Vitamin K (36585)

Methodology

Chromatography


Specimen Type

Plasma

Performing Lab

Quest Diagnostics Valencia


Epic ID

LAB01109

Lab Test Days

Sunday-Thursday

Standard TAT

4-7 Days


Collection Information

Specimen Required

3-6 mL Blood

Container Type

Lavender (EDTA)

Collection Instructions

Plasma collected in a sodium heparin (green-top) or lithium heparin (green-top) is also acceptable. Protect from light. Fasting for a minimum of 8 hours. Patient should refrain from eating liver and taking multivitamins or vitamin K at least 24 hours before sample collection.


Processing Information - Lab Use Only

Transport Temperature

Frozen-Only

Specimen Stability

Room Temp=Unacceptable; Refrigerated=Unacceptable; Frozen=90 Days

Rejection Criteria

Gross hemolysis; Grossly lipemic; Serum

Test Volume Required

3 mL Plasma

Minimum Test Volume

1.5 mL Plasma

Processing Instructions

Separate plasma within 1 hour of collection. Freeze immediately and protect from light.


Comments

Vitamin K is a required co-factor for the synthesis of factors 2, 7, 9, and 10 and proteins C and S. Deficiencies of vitamin K lead to bleeding. Coumadin® (warfarin) acts as an anticoagulant because it is a vitamin K antagonist.


CPT Codes

84597


Revised

01-17-20

Initials

SL