Lab (Specimen)

Conventional Units

SI Units

Vanillylmandelic acid (VMA) (urine)


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leq 10 mg/day <50
µmol/day
Vitamin A (serum)


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30 – 95
µg/dL
1.05 – 3.32
µmol/L

Vitamin B6
(plasma)


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5 – 24 ng/mL 30 – 144 nmol/L

Vitamin B12
(serum)



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200 – 800 pg/mL

Alt:  210-911 pg/mL

Folate, Serum
0 – 3.3 ng/mL: Deficient
3.4 – 5.3 ng/mL: Indeterminate
5.4 – 40.0 ng/mL: Normal

>150 – 590 pmol/L
Vitamin C (plasma)


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0.2 – 2.0 mg/dL 11 – 114
µmol/L
Vitamin D (1,25-Dihydroxy-vitamin D) (serum)


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24 – 65 pg/mL 58 – 156 pmol/L
25-Hydroxyvitamin D (serum)


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10 – 55 ng/mL 25 – 137 nmol/L
Vitamin E (serum)


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5 – 20
µg/mL
12 – 46
µmol/L

Disclaimer

The authors make no claims of the accuracy of the information contained herein; and these suggested doses are not a substitute for clinical judgment. Neither GlobalRPh Inc. nor any other party involved in the preparation of this program shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user’s use of or reliance upon this material.PLEASE READ THE DISCLAIMER CAREFULLY BEFORE ACCESSING OR USING THIS SITE. BY ACCESSING OR USING THIS SITE, YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS SET FORTH IN THE DISCLAIMER. Read the disclaimer