CHT Preterm Policy
Babies born at less than 32 weeks gestation (less than or equal
to 31+6 days) need a repeat screening test for CHT at 28 days
postnatal age (counting the date of birth as day 0) or the day of
discharge home, whichever is sooner. Please mark the card 'CHT
preterm repeat'. If the sample is taken at discharge before day 28,
please mark the card 'discharged home'.
For more details visit:
newbornbloodspot.screening.nhs.uk/cht-preterm-policy