Congenital hypothyroidism: screening laboratory handbook

Guidelines for laboratories screening newborns for congenital hypothyroidism (CHT) in the UK.


A laboratory guide to newborn screening in the UK for congenital hypothyroidism

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These documents set out laboratory standards and guidelines for congenital hypothyroidism (CHT) screening in newborn babies.

The document includes:

  • national procedures for screening laboratories
  • form for notification of presumptive positive by the screening laboratory to a clinician


Contact the screening helpdesk for a list of addendums:

Population screening helpdesk

PHE Screening
Floor 5
Wellington House
133-155 Waterloo Road


The helpdesk is not for media enquiries and does not have access to screening results. For queries about results, contact your GP or local screening service. Order screening leaflets at

Published 1 February 2014
Last updated 29 March 2018 + show all updates
  1. Added addendum to guidance valid from 2 April 2018.

  2. First published.