Putting Prevention into Practice

An Evidence-Based Approach

Screening for Abnormal Blood Glucose and Type 2 Diabetes Mellitus


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Am Fam Physician. 2016 Jun 15;93(12):1025-1026.

  Related U.S. Preventive Services Task Force Recommendation Statement: Screening for Abnormal Blood Glucose and Type 2 Diabetes Mellitus: Recommendation Statement.

Author disclosure: No relevant financial affiliations.

Case Study

M.A. is a 43-year-old woman with a seven pack-year smoking history. She has no health concerns and has not visited a physician in four years. Her blood pressure and pulse are normal, and her body mass index (BMI) is 27 kg per m2. She does not have a family history of diabetes mellitus but notes that her husband was recently screened for diabetes. She asks if she will be screened during today's visit.

Case Study Questions

  1. According to the U.S. Preventive Services Task Force (USPSTF), which one of the following responses is most appropriate for this patient?

    • A. Screening is not recommended because her blood pressure is normal.

    • B. Screening is not recommended because she does not have a family history of diabetes.

    • C. Screening may be recommended in the future if her BMI increases to 30 kg per m2 or greater.

    • D. Screening is recommended because she is overweight.

    • E. The evidence is insufficient to assess the balance of benefits and harms of screening in this patient.

  2. The patient is screened for diabetes, and her blood glucose level is normal. According to the USPSTF, how often should she be rescreened?

    • A. Annually.

    • B. Every two years.

    • C. Every three years.

    • D. Every five years.

    • E. She should not be rescreened; the USPSTF recommends one-time screening in adulthood.

  3. The patient's fasting plasma glucose level is 107 mg per dL (5.9 mmol per L). According

Author disclosure: No relevant financial affiliations.

The views expressed in this work are those of the authors, and do not reflect the official policy or position of the Uniformed Services University of the Health Sciences, the Department of Defense, or the U.S. government.


U.S. Preventive Services Task Force. Screening for abnormal blood glucose and type 2 diabetes mellitus: U.S. Preventive Services Task Force recommendation statement. Ann Intern Med. 2015;163(11):861–868.

Selph S, Dana T, Blazina I, Bougatsos C, Patel H, Chou R. Screening for type 2 diabetes mellitus: a systematic review for the U.S. Preventive Services Task Force. Ann Intern Med. 2015;162(11):765–776.

This PPIP quiz is based on the recommendations of the USPSTF. More information is available in the USPSTF Recommendation Statement and the supporting documents on the USPSTF website ( http://www.uspreventiveservicestaskforce.org). The practice recommendations in this activity are available at http://www.uspreventiveservicestaskforce.org/Page/Document/UpdateSummaryFinal/screening-for-abnormal-blood-glucose-and-type-2-diabetes.

This series is coordinated by Sumi Sexton, MD, Associate Deputy Editor.

A collection of Putting Prevention into Practice published in AFP is available at http://www.aafp.org/afp/ppip.


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