🌀HbA 1c is affected by many factors:
✅ Elevated HbA1c can occur in iron deficiency, vitamin B12 deficiency, alcohol dependence, chronic renal failure, hyperbilirubinaemia and splenectomy

✅ Reduced HbA1c can occur in chronic liver disease, hypertriglyceridaemia, some haemoglobinopathies, splenomegaly, rheumatoid arthritis and certain medications, including iron or vitamins B12 , C or E, antiretrovirals and dapsone.
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