Laboratory Services
Vitamin A (Retinol)
Print this pageUpdated Test Information:
| Test Description |
Vitamin A (Retinol)
|
|
|---|---|---|
| Synonym(s) |
UOW3334 |
|
| Test ID |
VITAG
|
|
| General Information |
The concentration of vitamin A in serum/plasma is determined by heptane liquid-liquid extraction and liquid chromatography-tandem mass spectrometry. The reportable range is 40-1600 mcg/mL with imprecision between 4.4 to 6.2 %CV. |
|
| Container Type |
4 mL blood in GOLD SST tube Also Acceptable: 4 mL blood in ORANGE RST, GOLD SST, LIME, RED TOP or LAVENDER TOP tube Pediatric Draw: 1 Full LIME GREEN MICROTAINER |
|
| Specimen Type |
Serum |
|
| Specimen Requirements |
0.5 mL plasma/serum |
|
| Specimen Collection / Processing Instructions |
PST, RST or GOLD SST: centrifuge and refrigerate plasma/serum in original container LAVENDER, or RED top: centrifuge, remove plasma/serum from red cells and refrigerate |
|
| Minimum Sample Volume |
0.3 mL plasma/serum |
|
| Stability |
refrigerated, 7 days. |
|
| Department (code) |
Chemistry, Harborview |
|
| Methodology |
LCMSMS |
|
| Testing Schedule |
Tuesday, Thursday |
|
| Test Includes |
VITA Vitamin A (Retinol) |
|
| CPT Code(s) |
84590 |
|
| STAT Orderable (Y/N) |
No |
|
| Performing Lab |
UW |
|
| LOINC Code(s) |
