How Much Monitoring Do You Need?

Monitoring advice for monogenic diabetes cannot be given as one answer, because the subtypes genuinely differ. Applying Type 1 or Type 2 monitoring intensity across all of them is a common mistake.

GCK-MODY, untreated. There is very little to monitor. Glucose is mildly raised, stable, does not worsen with age, and no treatment is being adjusted against a reading. Frequent home testing here mostly generates anxiety about numbers nobody intends to change. An annual HbA1c is usually the sensible level.

HNF1A or HNF4A-MODY on a sulfonylurea. More structure is warranted, for two reasons. These subtypes are progressive, so control drifts over years and needs catching. And sulfonylureas can cause low blood sugar, so you need to be able to confirm a suspected low.

Anyone on insulin. Monitoring follows the same principles as insulin treatment in any form of diabetes.

During a treatment change. This is the one situation where everyone monitors closely, whatever the subtype — coming off insulin or starting a sulfonylurea needs readings to guide it.

In pregnancy, monitoring intensifies regardless of subtype.

So ask specifically what your subtype and treatment require, rather than accepting generic diabetes advice.