Lab technician or nurse. Mild discomfort at needle insertion.
Glucose solution can be unpalatably sweet.
Within 1 day. Needle, blood collecting tubes, and sometimes a vena-access portal. Most commonly used to diagnose gestational diabetes. Also used to diagnose diabetes in people who exhibit symptoms but have high-normal results on blood glucose test. How it works The pancreas releases insulin into the bloodstream to regulate the body's processing of glucose.