Vitamin K1
Test Code: 121200
Performing Lab: LabCorp
CPT Code: 84597 001
Synonym
Phylloquinone
Specimen Type
Serum or plasma, protected from light
Specimen Container
Lavender-top (EDTA) plasma, preferred. Also acceptable are green-top (lithiun heparin) plasma, gel-separated (SST) serum, and standard (red top) serum. For amber plastic transport tube and amber-top, order LabCorp N 23598. Identify specimen with patient's name directly on the container AND on the outside of the aluminum foil. Secure with tape.) For amber plastic transport tube and amber-top, order LabCorp ID 23598.
Volume
1.0 mL
Minimum Volume
0.5 mL(Note: This volume does not allow for repeat testing.)
Specimen Handling
The blood is to be collected by venipuncture into a Vacutainer(R) blood collection tube and mixed immediately by gentle inversion at least six times to ensure adequate mixing. Allow serum samples to clot for at least 10 minutes. Separate plasma/serum from red cells by centrifugation. PROTECT FROM LIGHT. Transfer plasma/serum specimen to labeled amber plastic transport tube with amber stopper. For amber plastic transport tube and amber stopper, order LabCorp N 23598.
Patient Prep
Patient should fast for 12 hours.
Unacceptable Conditions
Receipt of mild or grossly lipemic specimen; receipt of grossly hemolyzed specimen; receipt of specimen not protected from light; receipt of specimen outside of stability; receipt of citrate plasma.
Temperature
Specimens should be light-protected, and shipped at room temperature or refrigerated (preferred) temperature.
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS) [3]
Stability
Room Temperature: 7 days
Refrigerated: 14 days
Frozen: 28 days
Refrigerated: 14 days
Frozen: 28 days
| Result Code | Result Name | LOINC |
|---|---|---|
| 121201 | Vitamin K1 | 9622-2 |
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