An A1C result estimates your average blood sugar over roughly three months. It can help clinicians screen for prediabetes or type 2 diabetes, or monitor an existing condition. To prepare for your next visit, bring the report and ask what the number means in your situation, whether it needs confirmation, and what follow-up is appropriate. A result in an online portal is a starting point for that conversation. [1,4]

For adults in Maspeth and nearby Queens communities, a useful goal is to leave the appointment understanding both the result and the next step. You do not need to arrive with a diagnosis or a treatment plan already chosen.

Start with why the test was ordered

A1C measures how much glucose is attached to hemoglobin, a protein in red blood cells. The result is a percentage. A finger-stick glucose reading, by contrast, measures blood sugar at that moment. A1C summarizes a longer period and may not reveal individual highs and lows. If your clinician has prescribed home monitoring, an A1C test does not replace it. [2]

Ask whether your test was ordered for screening, to investigate a concern, or to follow an established diagnosis. Those purposes lead to different discussions. Someone seeing their first screening result may need clarification about confirmation; someone already receiving diabetes care may need to review an individual target and monitoring plan.

Understand the ranges without diagnosing yourself

Common A1C categories used when evaluating adults for prediabetes and type 2 diabetes are:

  • Below 5.7%: the usual normal category.
  • 5.7% to 6.4%: the prediabetes range.
  • 6.5% or higher: the diabetes range.

For someone without clear symptoms, an abnormal result generally needs confirmation with another A1C or a different glucose test. Ask which test is appropriate and when it should happen. These categories do not set a treatment target for everyone already living with diabetes. [1,2]

Lab results are considered alongside symptoms, medical history, and examination findings. A portal flag cannot provide that context. Likewise, a result within a reference range does not explain away ongoing symptoms. Bring the complete report so the clinician can see the test name, date, value, and units. [4]

Mention factors that could affect accuracy

A1C is useful, but it is not equally reliable in every situation. Conditions affecting red blood cells, including anemia and some blood disorders, can interfere with its interpretation. Kidney failure, liver disease, and pregnancy can also matter. A clinician may choose a different test when A1C is unreliable. [3]

Tell the clinician about recent substantial blood loss or a blood transfusion. Mention prescriptions, nonprescription products, and supplements. Some medicines can affect results; do not stop a medicine to prepare for testing unless your prescriber instructs you to do so. A1C is not the test used to diagnose gestational diabetes. [2,3]

A practical question is: “Is there anything in my history that could make this result misleading?” If A1C and other glucose results seem inconsistent, ask how that difference will be evaluated.

Make the discussion practical

Prediabetes means blood sugar is above normal but below the diabetes range. It increases the chance of developing type 2 diabetes, but progression is not inevitable. NIDDK describes healthy eating, physical activity, sufficient sleep, and weight management when appropriate as parts of prevention planning. [5]

Ask what would be useful and realistic for you. For example, if rotating shifts make regular meals difficult, bring that up. If pain limits walking, ask how an activity plan could account for it. These are discussion prompts, not a prescribed diet or exercise program.

A manageable first step can be more useful than a long list you cannot follow. Discuss whether additional support or a prevention program is appropriate. The clinician can help connect your result with your health history and priorities; this article cannot determine which treatment or program you qualify for. [5]

A short preparation checklist

Before a routine follow-up, gather:

  • The current report and any previous A1C or glucose reports you have.
  • Your medicine and supplement list, including recent changes.
  • Notes about relevant health events, pregnancy, blood loss, or transfusions.
  • Any glucose records you already keep under your care plan.
  • Your two or three most important questions.
  • A way to take notes, or a trusted support person if you want one.

These records support the conversation; an imperfect list should not delay needed care. Ask the office how to share outside records securely. If you need an interpreter, contact the office ahead of the visit to discuss arrangements. [2,3,8]

Know when to seek care sooner

Do not wait for a routine results visit if you develop persistent increased thirst, frequent urination, unexplained weight loss, or blurred vision. Contact a clinician promptly and describe when the symptoms began. These can occur with diabetes, but symptoms alone do not establish the cause. Type 2 diabetes can also develop without noticeable symptoms. [6]

Trouble breathing, vomiting that prevents you from keeping food or fluids down, or multiple signs of diabetic ketoacidosis require emergency attention: call 911 or go to an emergency department. Ketoacidosis can occur even before someone knows they have diabetes. Do not wait for an A1C result or a clinic callback in an emergency. [7]

Frequently asked questions

Do I need to fast for an A1C test?

A1C alone does not require fasting. Other tests ordered at the same visit may have different instructions. Confirm the actual orders with the clinic or laboratory before changing what you eat or drink. [2]

Does a result in the prediabetes range mean diabetes is inevitable?

No. Not everyone with prediabetes develops type 2 diabetes. Discuss confirmation of the result, your overall risk, and a practical prevention and follow-up plan. [1,5]

Should I stop medicine if my A1C improves?

Do not change or stop prescribed treatment on your own. An improved result does not automatically mean an established condition has gone away. Ask your prescriber how the result affects your plan. [2,3]

What should I clarify before leaving the visit?

Ask who will review any repeat test, how results will reach you, when follow-up is due, and whom to contact with questions. Request written instructions if helpful, and repeat the plan in your own words to check your understanding. [8]

Taking the next step

To discuss a routine visit with UP One Health, contact the clinic or call (718) 255-3346. You can also review the clinic's services. Explain that you have a lab result to discuss and ask what records to provide. The clinic can confirm the appropriate appointment and available services.

Medical information notice

This article provides general education, not a diagnosis or individualized medical advice. Testing, targets, treatment, and follow-up depend on your circumstances and clinician's assessment. It does not guarantee services, treatment eligibility, outcomes, appointment availability, pricing, or insurance coverage. For an emergency, call 911.

Reviewed sources

  1. NIDDK: The A1C Test & Diabetes
  2. CDC: A1C Test for Diabetes and Prediabetes
  3. MedlinePlus: Hemoglobin A1C (HbA1c) Test
  4. MedlinePlus: How to Understand Your Lab Results
  5. NIDDK: Insulin Resistance & Prediabetes
  6. CDC: Symptoms of Diabetes
  7. CDC: Diabetic Ketoacidosis
  8. MedlinePlus: Talking With Your Doctor