What your A1C tells your doctor—and what it leaves out

An average is a starting point

A1C and a glucose reading answer different questions. A glucose check describes a particular moment; A1C looks over a longer period. An average can miss swings, so the result may be considered alongside other information.

The goal is individualized. Conditions that affect red blood cells, including some anemias or a recent transfusion, can make A1C harder to interpret. Tell the clinician about changes in your health rather than assuming that a mismatch is an error.

Put the result on a timeline

On one sheet, write the date of the current test and any earlier results you have. Underneath, record major changes during that period. This is a way to prepare the discussion, not a calculation that explains the result on its own.

• Changes in the medicines you were prescribed or able to obtain.
• Hospital stays or other major health events.
• Changes in your usual meal or work schedule that you want to discuss.
• Glucose records, if your clinician has asked you to monitor them.

Ask what decision the result informs

Try: “What does this result change about our plan?” The answer may involve follow-up, a discussion of your routine or additional information. A number is most useful when you understand the decision attached to it.

If A1C and your home records seem inconsistent, say so. Bring the dates and original records. Do not increase, skip or stop medication to respond to one result without instructions.

Close the loop on results

If you can see the result in Healow but do not understand the plan, ask the office how it will be reviewed with you. Visibility in a portal and a completed clinical discussion are different things.

Before ending the conversation, write down the next appointment or testing step and who will arrange it. For time-sensitive concerns, call the office. Your guide is a preparation aid; your clinician sets your personal goals.