Does anemia affect A1C results?

Our observation showed that conditions such as iron deficiency anemia can spuriously elevate A1C levels; consequently care should be taken before altering treatment regimen. Our observation also showed significantly higher A1C levels in anemic patients who had FPG between 100-126 mg/dl.

Can iron deficiency affect A1C?

A previous study conducted by Brooks et al. showed that iron deficiency anemia might alter the glycation rate of hemoglobin and cause elevations in A1c levels regardless of glycemia in patients without diabetes.

Is A1C accurate in anemia?

(21) found that among nondiabetic adults with iron-deficiency anemia, the A1C was 7.4 ± 0.3% before treatment and 6.2 ± 0.6% after treatment. Likewise, Tarim et al. (22) found that A1C in iron-deficient patients decreased from 7.6 ± 2.6 to 6.2 ± 1.4% after iron therapy (P < 0.05), despite similar glucose levels.

Can anemia affect glucose levels?

Iron deficiency (ID) and IDA can impair glucose homeostasis in animals and human and may negatively affect glycemic control and predispose to more complications in diabetic patients.

How does B12 affect A1C?

If you’re taking iron or vitamin B12 supplements to treat those anemias, you’re encouraging your body to make new red blood cells. This can cause your A1C test to be falsely low. (Again, if you have an iron deficiency anemia and you’re NOT treating it, your A1C test will be falsely high.)

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Can iron deficiency cause low blood sugar?

If you don’t eat enough fuel, your blood sugar (glucose) levels can drop and this can lead to hypoglycemia. If you don’t get enough iron in your diet (which is necessary to produce healthy red blood cells) you can become anemic.

Does iron raise blood sugar?

Iron tablets themselves do not cause raises in blood glucose levels, but you have to be careful what you take them with. To help iron absorption, many health care professionals will advise to take the iron tablets with vitamin C3.

What causes a sudden increase in A1C?

A large change in mean blood glucose can increase HbA1c levels within 1-2 weeks. Sudden changes in HbA1c may occur because recent changes in blood glucose levels contribute relatively more to the final HbA1c levels than earlier events.

At what A1C level does damage start?

A normal A1C level is below 5.7%, a level of 5.7% to 6.4% indicates prediabetes, and a level of 6.5% or more indicates diabetes. Within the 5.7% to 6.4% prediabetes range, the higher your A1C, the greater your risk is for developing type 2 diabetes.

What can falsely elevate A1C?

Several medications and substances have also been reported to falsely elevate A1c including lead poisoning2, chronic ingestion of alcohol, salicylates, and opioids. Ingestion of vitamin C may increase A1c when measured by electrophoresis, but may decrease levels when measured by chromatography.