Retinol
(Specimen Container)
SST (Tiger Top) protected from light. Amber transport tube.
(Transport Temperature)
| Temperature | Period |
|---|---|
| Room temperature | 24 hours |
| Refrigerated | 7 days |
| Frozen | 28 days |
Grossly hemolyzed, Heavily lipemic sera, Received in Serum separator tube (SST) or red-top tube (no gel) collection tube, Received room temperature, Not light protected , Plasma
Separate from cells as soon as possible after clotting. Send serum in an amber tube. If an amber tube is not available, wrap tube in aluminum foil to protect from light. Patient Preparation: Overnight fasting is required.
Vitamin A is critical for vision, growth, and many cell functions. High concentrations of Vitamin A are seen with renal failure, but this is not associated with toxicity and excessive ingestion. High concentrations are associated with bone fractures. Low concentrations of Vitamin A are consistent with fat malabsorption and are rarely due to inadequate diet.
20 – 43 mcg/dL (1 – 6 Years)
26 – 49 mcg/dL (7 – 12 Years)
26 – 72 mcg/dL (13 – 19 Years)
38 – 98 mcg/dL (Adult)
