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Vitamin K1 (LABCORP)
Test Code99901000458
Alias/See Also
LAB1110: Vitamin K | LABCORP EAP: 121200
CPT Codes
84597x1
Preferred Specimen
LABCORP LAB: LAVENDER TOP-EDTA (Rerigerated) Min Vol: 1
Transport Temperature
Specimen: Serum or plasma, protected from light
Volume: 1.0 mL
Minimum Volume: 0.5 mL (Note: This volume does not allow for repeat testing.)
Container: EDTA (lavender-top) plasma, preferred. Also acceptable are lithium heparin (green-top) plasma, gel-separated (SST) serum, and standard (red-top) serum. For amber plastic transport tube and amber-top, order Labcorp No. 23598.
Collection: The blood is to be collected by venipuncture into a Vacutainer® 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 No. 23598.
Storage Requirements:
Plasma from Lavender Top Tube Refrigerated Light Protected
Storage Instructions:
Specimens should be light-protected, and shipped at room temperature or refrigerated (preferred).
Volume: 1.0 mL
Minimum Volume: 0.5 mL (Note: This volume does not allow for repeat testing.)
Container: EDTA (lavender-top) plasma, preferred. Also acceptable are lithium heparin (green-top) plasma, gel-separated (SST) serum, and standard (red-top) serum. For amber plastic transport tube and amber-top, order Labcorp No. 23598.
Collection: The blood is to be collected by venipuncture into a Vacutainer® 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 No. 23598.
Storage Requirements:
Plasma from Lavender Top Tube Refrigerated Light Protected
Storage Instructions:
Specimens should be light-protected, and shipped at room temperature or refrigerated (preferred).
Specimen Stability
Stability Requirements:
Room temperature 7 days
Refrigerated 14 days
Frozen 28 days
Freeze/thaw cycles Stable x3
Patient Preparation: Patient should fast for 12 hours.
Room temperature 7 days
Refrigerated 14 days
Frozen 28 days
Freeze/thaw cycles Stable x3
Patient Preparation: Patient should fast for 12 hours.
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Cause for Rejection:
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.
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.
Report Available
LABCORP LAB
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min
STAT: 5760 min
Routine: 5760 min
Extended TAT: No TAT min
Timed: 5760 min
Life or Death: 5760 min
Last Updated: August 28, 2025
