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Review
. 2024 Jul 1;47(7):1104-1110.
doi: 10.2337/dci23-0040.

Point-of-Care HbA1c in Clinical Practice: Caveats and Considerations for Optimal Use

David B Sacks  1 , M Sue Kirkman  2 , Randie R Little  3
Affiliations
Review

Point-of-Care HbA1c in Clinical Practice: Caveats and Considerations for Optimal Use

David B Sacks et al. Diabetes Care. .

Abstract

Hemoglobin A1c (A1C) is widely used for the diagnosis and management of diabetes. Accurate measurement of A1C is necessary for optimal clinical value. Assay standardization has markedly improved the accuracy and consistency of A1C testing. Devices to measure A1C at point of care (POC) are commercially available, allowing rapid results when the patient is seen. In this review, we describe how standardization of A1C testing was achieved, leading to high-quality results in clinical laboratories. We address the use of POC A1C testing in clinical situations and summarize the advantages and disadvantages of POC A1C testing. We emphasize the importance of considering the limitations of these devices and following correct testing procedures to ensure that accurate A1C results are obtained for optimal care of patients.

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Conflict of interest statement

Duality of Interest. No potential conflicts of interest relevant to this article were reported.

Figures

None
Graphical abstract
Figure 1
Figure 1
Mean for each method compared with the NGSP/DCCT target (dashed lines) in 1993, 1999, 2005, 2010, 2015, and 2023 based on College of American Pathologists EC, GH2, and GH5 survey data. Symbols represent the mean of laboratory results for each method; error bars are ±2 SD. Results were reported as HbA1c (▪), HbA1 (♦), and total glycated hemoglobin (•). Data used with the permission of the College of American Pathologists.
See this image and copyright information in PMC

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