Cutoff value of sweat chloride values above which 2 consistantly higher reading is diagnostic for Cystic fibrosis is: (A) 40 mEq / L, (B) 50 mEq / L, (C) 60 mEq / L, (D) 70 mEq / L
Answer is C. One or more clinical features of Cystic Fibrosis
+
Two consistently > 60 mEq / L Sweat chloride
values is diagnostic of Cystic fibrosis.