Certified Diabetes Educator Practice Exam 2026 - Free Practice Questions and Study Resource.

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What conditions are known to affect the accuracy of A1C tests?

Obesity and hypertension

Type 2 diabetes and depression

Sickle cell anemia and iron deficiency

The accuracy of A1C tests can be significantly influenced by specific hematological conditions. Sickle cell anemia is a blood disorder that affects the shape and structure of red blood cells, which can lead to misleading A1C results, as the lifespan of red blood cells is altered. In addition, iron deficiency anemia can impact hemoglobin, the component measured in A1C tests. When iron levels are low, the hemoglobin forms can change, which may also result in inaccurate A1C readings.

Understanding these conditions is vital for healthcare providers as they ascertain the long-term glycemic control of patients with diabetes. If someone has one of these conditions, it may be necessary to rely on alternative methods for monitoring blood glucose levels, such as regular blood glucose testing, to ensure proper management of their diabetes.

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Gestational diabetes and hyperthyroidism

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