Beta Carotene
10 days
High-pressure liquid chromatography (HPLC)
Accredited Laboratory Partner
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Measures beta-carotene levels. Reflects vitamin A intake and absorption.
Serum, protected from light
1 mL
Red-top tube or gel-barrier tube, amber plastic transport tube with amber top.
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
If amber tubes are unavailable, cover standard transport tube completely, top and bottom, with aluminum foil. Identify specimen with patient's name directly on the container and on the outside of the aluminum foil. Secure with tape.)
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |