Test Directory
| Test Code | |||||
| VITB7 | |||||
| Test Name | |||||
| Vitamin B7 (Biotin) | |||||
| CPT Codes | |||||
| 84591 | |||||
| Expected Turnaround Time | |||||
| 2 - 7 days | |||||
| Clinical Utility | |||||
| Measurement of vitamin B7 level | |||||
| Specimen and Container Info | |||||
|
Preferred Specimen Type: Serum Alternate Specimen Type: Plasma
Preferred Collection Container: Red Top, Plain Alternate Collection Container: Lavender Top (EDTA) Desired Specimen Volume: 1 mL |
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| Collection Instructions | |||||
| Collect specimen in EDTA tube or red top tube via venipuncture. Centrifuge and transfer plasma or serum to plastic aliquot tube. | |||||
| Transport Instructions | |||||
|
Transport to the laboratory frozen. |
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| Stability Requirements | |||||
|
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| Causes for Rejection | |||||
| Gel-barrier tube | |||||
| Methodology | |||||
| Liquid Chromatography - Tandem Mass Spectrometry (Lc/Ms/Ms) | |||||
| Reference Intervals | |||||
|
0.05−0.83 ng/mL |
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| Reference Lab | |||||
| Labcorp Of America Holdings | |||||
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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