EnVision CF Multicenter Study of Glucose Tolerance in Cystic Fibrosis

oral glucose solution is given by mouth, blood is drawn prior to the administration of the oral glucose beverage and then at timed intervals afterward. This is the standard test to diagnosis cystic fibrosis related diabetes mellitus. However, this study will have more time points than standard screening for cystic fibrosis related diabetes mellitus

a device is placed on the subject's arm that continuously monitors subcutaneous glucose levels for up to 10 days

low dose x-rays are used to measure the subject's bone density. This is the standard test to diagnose osteoporosis