 [ Symptoms ] around back had lower lumbar surgery l3 l5 to releve pressure on nerver did not help any ideas  this page is a joke tells me i havr 47 characters left but when i post says i have used to many and wont let me  [ Disease ] there are a few rare conditions that produce a false positive sweat chloride test such situations include diseases of the adrenal thyroid or pituitary glands rare lipid storage diseases and infection of the pancreas generally however these children are easily differentiated from patients with cystic fibrosis by their clinical condition and molecular tests for cystic fibrosis can be done to clarify the diagnosis