Mean Plasma glucose to HbA1c conversion

Is your facility encounter the problem of not having HbA1c testing? Well, there is a method which can be employed to estimate your patient HbA1c percentage based on average (mean) plasma glucose.

This is the conversion chart which you can refer to.

This chart is based on a formula:

HbA1c = [Mean plasma glucose (mmol/L) + 4.29]

                                        1.98

In order for you to remember the formula easily, you can actually use a simpler formula:

HbA1c = [Mean plasma glucose (mmol/L) + 5]

                                        2

Bear in mind, this is just an estimation.