Item Value
Test name Biopterin (Newborn Screening follow-up only)
Available Stat? No
Performed by Calif. Dept. of Public Health
Normal range
Container type Newborn Screening Specimen Collection Card
Urine container
Amount to Collect 4 blood spot circles & 10 mL urine
Collection Instructions Blood: Fill a minimum of 4 circles on the Newborn Screening Specimen Collection Card and allow to air dry for 3 hours. keep sample away from direct sunlight and heat. Peel off one barcode label from the Newborn Screening Specimen Collection Card and apply to the Biopterin Specimen Collection form.
Urine: Collect 10 mL urine. Protect collection container from light by wrapping in aluminum foil.

Provide pink copy of Biopterin Specimen Collection form to parents.

Send the Biopterin Specimen Collection form, Newborn Screening Specimen Collection Card, and urine sample to laboratory for shipment.

Click here for printable copy of instructions
Sample type Whole blood & urine

If you have additional questions regarding this test, please call: 415-353-1667