Negative sweat tests and cystic fibrosis

Arch Dis Child. 1975 Jun;50(6):463-6. doi: 10.1136/adc.50.6.463.

Abstract

Two brothers are described with chronic suppurative pulmonary disease. One has classical cystic fibrosis with complete pancreatic involvement and abnormal sweat test. The other had incomplete pancreatic disease with repeatedly normal sweat tests. The implications of a negative sweat test in patients with cystic fibrosis are discussed.

MeSH terms

  • Amylases / analysis
  • Bicarbonates / analysis
  • Child
  • Child, Preschool
  • Chronic Disease
  • Cystic Fibrosis / blood
  • Cystic Fibrosis / complications
  • Cystic Fibrosis / diagnosis*
  • Cystic Fibrosis / diagnostic imaging
  • Female
  • Humans
  • Lung Diseases / complications
  • Male
  • Pneumonia / complications
  • Radiography
  • Sputum / microbiology
  • Staphylococcus
  • Sweat / analysis*
  • Trypsin / analysis

Substances

  • Bicarbonates
  • Amylases
  • Trypsin