The case of Pseudo-Bartter's syndrome: an atypical presentation of cystic fibrosis

A 72-day-old infant with the beginning at the basic disease, cystic fibrosis, was presented with PseudoBartter's syndrome. The disease began with coughing, diarrhoae, vomiting and weakness. Investigations serum of electrolytes showed hyponatremia (110mmol/L) and hypokalemic, hypochloremic metabolic alcalosis (serum potassium 2.6mmol/l; chloride 63.1mmol/l; bicarbonate 43mmol/L and pCO2 47.3mmol/l).