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|A B C D E F G H I J K L M N O P Q R S T U V W X Y Z|
1 x 3.5 mL gold top SST tube
0.5 mL serum
Minimum 10 hour fast. 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.
PSC & RRL:
|Additional Information||This assay does not measure other vitamin A metabolites such as retinaldehyde and retinoic acid.|
Some foods containing vitamin A include liver, whole milk, colourful fruits and vegetables (i.e. dried apricots, sun-dried tomatoes in oil, kale, spinach).
|Testing Location||Analytical Toxicology
|Reference Interval||< 1 year: 0.5 to 1.8 umol/L|
1 - 6 years: 0.7 to 1.5 umol/L
7 - 12 years: 0.9 to 1.7 umol/L
13 - 18 years: 0.9 to 2.5 umol/L
≥ 18 years: 1.5 - 3.5 umol/L