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Vitamin K
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | No |
| Test code | VITK |
| Performed by | Quest |
| Sendout? | Yes |
| Method | HPLC |
| Patient Preparation | Overnight fast preferred. |
| Collection Instructions | Wrap sample tube in aluminum foil to protect from light. |
| Container type | Dark Green top (Light. green acceptable) |
| Amount to Collect | 8 mL blood |
| Sample type | Heparinized plasma |
| Preferred volume | 4 mL plasma |
| Min. Volume | 2 mL plasma |
| Processing notes | Separate and freeze plasma at -20C in dark plastic transport tube or wrapped with aluminum foil. Ship frozen to China Basin. Order Quest # 36585X |
| Ref Lab Rejection Criteria | Thawed or refrigerated sample. |
| Units | pg/mL |
| Normal range | 80-1160 pg/mL |
| Stability | Room temperature unacceptable, refrigerated unacceptable, frozen at -20C 3 months |
| Additional information | Vitamin K is a required co-factor for the synthesis of factors 2, 7, 9, and 10 and proteins C and S. Deficienceies of Vitamin K lead to bleeding. Warfarin acts as ananticoagulant because it is a Vitamin K antagonist. |
| LOINC code | 3129-4 |
| Last Updated | 10/2/2010 11:52:56 AM |
| Entry Number | 1093 |
If you have additional questions regarding this test, please call: 415-353-1667