Vitamin K

What it measures

• Vitamin KLOINC 9622-2

Before the visit

Fasting required

Fasting 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.

Specimen

Specimen

1 mL frozen plasma collected in an EDTA (lavender-top) tube - protected from light

Minimum volume

0.5 mL

Also accepted

Frozen plasma collected in: Sodium heparin (green-top) tube - protected from light or lithium heparin (green-top) tube - protected from light • Frozen serum - protected from light

Container

Amber transport tube

Temperature

Frozen

Centrifuge 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. If unable to centrifuge immediately, sample should be covered with aluminum foil immediately and placed on ice until plasma or serum can be separated from cells. Transport plasma or serum to the laboratory frozen.

Turnaround

Set up: Tues, Thurs

Billing

CPT 84597