<prompt> True about CF-Incidence is 1:2000Positive Sweat testMutation in CFTR geneMay presents as meconium ileus  <response>: A positive sweat chloride test indicates that it is likely that the infant or person tested has cystic fibrosis CF. Positive sweat chloride tests are typically repeated for verification. The results may also be confirmed by CF gene mutation panel testing. Ref Harrison20th edition pg 288 