2 - 5 days
Vitamin K1 Level
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Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
0.10 - 2.20 ng/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Patient should abstain from alcohol for 24 hours prior to specimen collection. Collect specimen in a red top (preferred) or SST tube from a fasting patient (12-hour fast). Centrifuge, aliquot serum into a plastic vial and refrigerate.