HealthScope BriefPrediabetes Often Has No Warning Signs. Is Screening on Your Calendar?
A routine appointment is a chance to review blood sugar risk, even when you feel well.
HealthScope Brief Editors · Updated

Some preventive-care questions are easy to remember because a symptom prompts them. Blood sugar screening may never offer that reminder. Prediabetes often develops without obvious symptoms, which makes a routine appointment a useful time to ask whether testing is due.[1]
Who should raise the question?
The U.S. Preventive Services Task Force recommends screening for prediabetes and type 2 diabetes in adults ages 35 to 70 who have overweight or obesity. Its recommendation concerns adults without diabetes symptoms who are not pregnant.[2]
That is a starting point for a discussion, rather than a rule that covers every person. Family history, a history of gestational diabetes and other circumstances can affect when a clinician recommends screening.[2]
What to bring to a routine visit
Find the date and result of your most recent blood sugar test, if you have one. Add relevant family history and a list of current medicines. If diabetes occurred during a pregnancy, mention it even if it was years ago.
Ask a direct question: Am I due for screening, and which test would you recommend? Writing down the answer makes it easier to distinguish a plan from a vague intention to test someday.
What the tests measure
A1C reflects average blood sugar over roughly three months. A fasting plasma glucose test measures blood sugar after the required fast. The choice depends on the situation, and some findings need confirmation.[3]
Follow the instructions for the actual test being ordered. If several measurements are collected together, the preparation may be determined by another item in the panel.
Making collection easier to arrange
SiPhox offers upper-arm collection at home with laboratory processing. When the included measurements fit the testing plan, home collection can remove the trip for a draw.[4]
The convenience of collection does not decide the appropriate screening interval. Keep the test and follow-up schedule tied to the reason for screening.
What follows a result
If screening suggests prediabetes, discuss the finding and prevention options with a clinician. The CDC describes structured programs that support changes in eating and activity to reduce the risk of type 2 diabetes.[1]
Save the report and the agreed next step together. That record can include a follow-up appointment, a prevention-program referral or the date to revisit screening.
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Sources
- Prediabetes and prevention — CDC
- Screening for prediabetes and type 2 diabetes — U.S. Preventive Services Task Force
- The A1C test and diabetes — NIDDK
- How at-home collection and lab processing work — SiPhox Health · checked September 10, 2026
General health information, not medical advice. Discuss concerning results or persistent symptoms with a licensed clinician. Enable JavaScript to use the on-page quiz.