www.diabeticretinopathy.org.uk

General

Insulin and hyperglycaemia

David Kinshuck

Hyperglycaemia is the term used when blood glucose levels rises too high. It is impossible to avoid this all the time, but if blood glucose levels rise often they will cause complications such as retinopathy. If glucose levels rise you need to consider injecting extra insulin to bring glucose levels down.

 

What causes hyperglycaemia?

Before altering an insulin dose, except in the case of illness, follow the one-step approach.

 

'Correcting' high blood glucose levels

For occasional high blood glucose levels above the target range, consider correcting with quick-acting insulin.

As a general principle

If corrective doses are required on a regular basis, a pattern of hypoglycaemia develops. Consider adjusting your ratio of quick-acting insulin to CPs, or whether your background insulin might need adjustment.
Only make one change at a time, and measure the effect. If altering background insulin, increase dose by 1-2 units (10-20%) at a time. This is taught in detail on the DAFNE program.