Test Guide Mobile Home
Search: Search

Newborn baby metabolic screening
Short Description : nbs


Guthrie Card
Test performed by: LabPLUS Newborn Screening


Specimen Collection

Samples should be collected as soon after 48h as practical.

Babies <1500g birthweight should have a futher 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.


4 Spot Paediatric Guthrie Card Blood
Reference Intervals

The reference interval will be provided with the result.

Paper reports are not issued for normal test results but these are available via Eclair.

LMCs receive a monthly list of babies tested in the last month.

Samples sent with a laboratory request form including the reason for the special test will have results reported.

Abnormal results will be telephoned.

It is important to note that normal screening tests do not completely exclude the screened disorders. Please contact the laboratory to arrange further tests if you have clinical suspicion of these conditions.



Turnaround Time: Between 2 days and 1 week, 3 days
Diagnostic Use and Interpretation

Newborn babies are tested for the following conditions - PKU, MSUD, galactosemia, cystic fibrosis, biotinidase deficiency, congenital hypothyroidism, congenital adrenal hyperplasia, fatty acid oxidation disorders and aminoacid breakdown disorders.

A full list of conditions is available from the National Screening Unit website. Click on the link below for more information.

Families may have the card returned if they wish. Click on the link below for more information.

Other information about the programme is at link below.

card return form

list of conditions

newborn screening programme information


Contact Information

General information from the National Screening Unit website, click on the link below .

Specific information Dr Dianne Webster x23019

Information sheets, test cards etc email ntc@adhb.govt.nz

NSU website



Last updated at 14:19:51 08/03/2013