Question

Tests for levels of what in blood allow a diabetic patient to regulate how much insulin to administer?

Answer 1

glucose

Laboratory testing has come to the local drug store or grocery store because of developments in chemistry. You can test your blood glucose using a simple portable device that runs a chemical test on the blood sample and tells you how much glucose is present, allowing a diabetic patient to regulate how much insulin to administer  chemistry is also used to produce the insulin and the disposable syringe that administers the drug .