No admit you are using drugs!
If the person is diabetic, yes it can cause a false positive for cocaine. Diabetes is one of the conditions which can cause a false positive for cocaine.. Along with kidney or liver disease/infection.
No it can not. One does not have anything to do with the other. Blood sugar levels are a whole different source than a cocaine drug.
Nooo what is detected in cocaine samples is amphetamines and barbitchuetes, sugar has neither of these