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Arch Dis Child. 1982 Jan;57(1):18-21.

Screening for cystic fibrosis by died blood spot trypsin assay.

Abstract

Immunoreactive trypsin was measured in dried blood specimens from 14,000 infants. A second test was performed in 0 . 2% of the population in whom blood trypsin levels were greater than 80 ng/ml. Five infants with cystic fibrosis were then detected, with only one case of persistent hypertrypsinaemia in whom this diagnosis could not be established. No false-negative test results have yet been identified. Seventeen infants with cystic fibrosis were tested inthe first 2 weeks of life, only one of whom had a blood trypsin concentration less than 80 ng/ml.

PMID:
7039516
PMCID:
PMC2863277
[Indexed for MEDLINE]
Free PMC Article

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