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Sweat Chloride
Tube type: Blank
Special instructions
Sample type
Macroduct Sweat sample
Interpretation
<6 months old:
<30: Negative: Low probability of Cystic Fibrosis (CF).
30 - 60: Intermediate: Suggestive of, but not diagnostic of CF.
>60: Positive: Supports the diagnosis of CF.
≥6 months old:
<40: Negative: Low probability of CF.
40 - 60: Intermediate: Suggestive of, but not diagnostic of CF.
>60: Positive: Supports the diagnosis of CF.
Contact Laboratory before requesting
Units
mmol/L
Turnaround Time
1
day
Department: Biochemistry
Clinical Application
Diagnosis of cystic fibrosis.
Webpage updated: July 2026.
