Find Locations
For hours, walk-ins and appointments.Expected Turnaround Time
4 - 6 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Documents
Specimen Requirements
Specimen
Serum
Volume
0.8 mL
Minimum Volume
0.4 mL
Container
Red-top tube or gel-barrier tube
Collection
If red-top tube is used, transfer separated serum to a plastic transport tube.
Storage Instructions
Room temperature
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 7 days |
Refrigerated | 14 days |
Frozen | 14 days |
Freeze/thaw cycles | Stable x6 |
Patient Preparation
Patient should abstain from alcohol for 24 hours prior to collection. For those who are younger than six months, draw prior to next feeding. Blood should be collected before breakfast in the morning and prior to any medication.
Causes for Rejection
Sample type other than serum received
Test Details
Use
Assess hyper-vitaminosis or vitamin deficiency. See individual test descriptions for more information.
Limitations
These tests were developed, and their performance characteristics determined, by LabCorp. They have not been cleared or approved by the US Food and Drug Administration (FDA).
Methodology
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 144039 | Vitamin A and E | 142004 | Vitamin A | ug/dL | 2923-1 | |
| 144039 | Vitamin A and E | 070141 | Vitamin E(Alpha Tocopherol) | mg/L | 1823-4 | |
| 144039 | Vitamin A and E | 070142 | Vitamin E(Gamma Tocopherol) | mg/L | 63370-1 |
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The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf