Vitamin K QVITAK

Method(s) Chromatography/Mass Spectrometry
Specimen Required
Collect

One 5 mL lavender (EDTA) top tube. Protected from light.

Also acceptable: Frozen plasma collected in: green (sodium heparin) top tube, protected from light green (lithium heparin) top tube, protected from light

Frozen serum - protected from light

Transport

1 mL plasma frozen (Min: 0.5 mL).

* Collection Instructions *

  • 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.
Remarks

Patient Preparation

  • 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.
Stability

Ambient: 24 hours

Refrigerated: 24 hours

Frozen: 90 days

Unacceptable Conditions
  • Gross hemolysis
  • Grossly lipemic
  • Received room temperature
  • Received refrigerated
Schedule Tue
CPTCode 84597
Notes Performing Laboratory-Quest Diagnostics-Chantilly VA
Preferred Specimen Collection Device(s)
Reference Interval

130-1500 pg/mL

No Appointment Necessary
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12 Patient Service Centers in Central New York.

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