Vitamin K
Label Mnemonic: VTK
Epic Lab Code: LAB4258
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 1.0 mL serum
Absolute Minimum: 0.6 mL serum
Rejection Criteria:
Any specimen other than serum or EDTA plasma. Hemolyzed specimens.
Delivery Instructions:
Wrap specimen in aluminum foil to protect from light. Deliver to laboratory immediately after collection.
Turn Around Time:
2-5 days upon receipt at reference laboratory
Reference Range:
0.22-4.88 nmol/L
Interpretive Data:
Vitamin K concentration is reported as nanomoles per liter (nmol/L). To convert concentration to nanograms per milliliter (ng/mL), multiply the result by 0.45.
Comments:
Overnight 12 hour fast preferred. Do not consume alcohol for one day prior to blood draw. Avoid hemolysis. Separate samples must be submitted when multiple tests are ordered.
Methodology:
Quantitative High Performance Liquid Chromatography
CPT Code:
84597
 
See Additional Information:
Specimens Requiring Immediate Delivery