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Blood Sciences

Blood Test Information

IRT (blood spot)
(a.k.a Immuno Reactive Trypsin, trypsin-like immunoreactivity)

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Test Code: BIR

Tube type: Guthrie Card

Special instructions
IRT is no longer routinely available as patients are now screened for cystic fibrosis at birth as part of the neonatal screening programme. Portsmouth hospital labroatory provides our regional screening service.
Sent away to Queen Alexandra Hospital, Portsmouth

Turnaround Time
21 days

Department: Biochemistry


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