25-Hydroxy vitamin D (D2+D3 fractionated), LC/MS-MS-14231
Test info
25-Hydroxy vitamin D (D2+D3 fractionated), LC/MS-MS
14231
LAB14231
VTDLC
- Total 25-hydroxy vitamin D2
- 25-hydroxy vitamin D3
25-Hydroxy vitamin D is used to measure vitamin D status; it includes results for total 25-hydroxy vitamin D2 and 25-hydroxy vitamin D3.
Specimen
Serum
1.0 mL
0.5 mL
Submission of the minimum volume does not allow for repeat testing
Submission of the minimum volume does not allow for repeat testing
Immediatley following collection, mix sample by gently inverting 5 times
- Allow sample to clot for a minimum of 30 minutes
- Spin within 45 minutes of sample collection
Gold serum separator (SST) tube
EDTA plasma; Heparin plasma
Red:
- Allow sample to clot
- Spin within 45 minutes of specimen collection
- Transfer the serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum
Dk green/lavender:
- Spin within 45 minutes of specimen collection
- Transfer the plasma to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as either EDTA or Heparin plasma
Ambient (preferred) - 7 days
Refrigerated - 7 days
Frozen - 34 months
Freeze/thaw cycle - stable x6
Performance
Esoterix Endocrinology (500337) via LabCorp (504115): R-LC
Mo - Sa
4 - 10 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Clinical and Interpretive info
Target levels: 30 - 100 ng/mL
Billing
82306
Yes
Result 62292-8
Tracking
05/21/2019
05/20/2024
10/20/2023