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Beta-Carotene

Source Blood
Mnemonic CARO
Specimen Requirements

1 x 3.5 mL gold top SST tube

0.5 mL serum

Minimum Whole Blood Volumes for Microcollections

Patient must be fasting a minimum of 10 hours. No alcohol or nutritional supplements within 24 hours.

Protect from light by wrapping tubes in foil immediately after collection.  Specimens not protected from light will be rejected.

Specimen Handling PSC & RRL:
Centrifuge and pour off serum.  Protect from light by using amber aliquot tube and lid, or wrap tubes in foil. Transport serum on ice to DSC. 

Extra-regional:
Centrifuge and pour off serum. Protect from light by using amber aliquot tube and lid, or wrap tubes in foil. Freeze serum before transporting to DSC.

DSC:
Freeze specimens upon receipt in lab; ensure frozen specimens do not thaw.
Additional Information

Testing Location Analytical Toxicology
Testing Frequency Monthly
Alternate Name(s) Carotene
Reference Interval 0.19 - 1.58 umol/L