Enzymatic
Specimen requirements | |
|---|---|
| Patient preparation | Fast for 8 hours. Note: Fasting does not apply to women with intrahepatic cholestasis of pregnancy, samples should be collected post-prandially. |
| Preferred specimen(s) | 1 mL serum |
| Minimum volume | 0.5 mL |
| Collection instructions | Centrifuge serum samples within 1 hour of collection and transfer serum into sterile transport tube(s). |
| Transport container | Transport tube |
| Transport temperature | Refrigerated (cold packs) |
| Specimen stability | Room temperature: Unacceptable Refrigerated: 7 days Frozen: 30 days |
| Reject criteria | Unspun serum separator tube (SST) • Red-top tube (no gel) |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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