Age <12 yrs: 57.0 - 2,460.2 pg/mL; age >or=12 yrs: 221.0 - 3,004.0 pg/mL.
1 - 19 days
- Vitamin B7
- Vitamin H
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum or plasma into a plastic vial and freeze. Protect specimen from light (place in brown plastic bag or aliquot into brown tube).
Protect specimen from light.
Test sent to Mayo Medical Laboratories; performed by Cambridge Biomedical.