Guthrie Card
Test Information
Test Name
Guthrie Card
Synonyms
Phenylalanine; PKU spot cards; Newborn Baby Metabolic Screening, Guthrie Card Amino Acids, MSUD, Maple Strup Urine Disease; Pompe Disease; Alpha Glucosidase
Preferred Specimen
4 Spot Paediatric Guthrie Card Blood
Testing Location
Referral
Turn Around Time
2 weeks
Collection Information
Preparation
- Samples should be collected as soon after 28h as practical
- Babies <1500g birthweight should have a further sample at 2 weeks of age
- Babies <1000g birthweight should have a third sample at 4 weeks of age
- Neonatal unit babies should have samples on the blue cards
- Samples must be dry before being placed into plastic specimen bags
- Venous samples can be used by dripping onto the card from the syringe or a dropper
Processing Information
Registration Code
PHEA
Notes
- New-born babies are tested for the following conditions - PKU, MSUD, galactosemia, cystic fibrosis, biotinidase deficiency, congenital hypothyroidism, congenital adrenal hyperplasia, fatty acid oxidation disorders and amino acid breakdown disorders.
- Each circle should be filled to the outer rim with blood.
*
Place card into an envelope - Do NOT put into biohazard bag.
Site Specific Notes
- Tauranga
Send sample directly to referral laboratory
- Whakatane
Send sample directly to referral laboratory
Methodology
Interpretations
View Interpretations
External Referral Information
Referral Location
LabPlus National Screening Unit
External Lab Website