Candar, TubaOzdemir, SedatErgur, Ayca TorelDemirtas, Selda2020-06-252020-06-252016closedAccess1305-2381https://hdl.handle.net/20.500.12587/6721The HbA1c test provides information about blood glucose levels of previous months depending on the erythrocyte lifetime when monitoring diabetic patients. However, various factors such as HbF and other hemoglobin variants can interfere with the measurement of HbA1c. In this study, an unexpectedly high HbA1c level was observed in a patient with type 1 diabetes. In the hemoglobin chain analysis, which explained the reason for the high value, high fetal hemoglobin levels were detected and interfered with HbA1c measurement with the HPLC method. This finding was in concordance with the literature. As a conclusion, it should be considered that hemoglobinopathy might be found in the patients who have higher levels of HbA1c which is not in agreement with the blood glucose. Thus, it can be said that HbA1c test is not a good marker for monitoring such diabetic patients. In such cases, fructosamine or other glycated end products may be a more reliable marker.eninfo:eu-repo/semantics/closedAccessHbA1c assayHbFtype 1 diabetesArticle121971002-s2.0-84964994801Q4WOS:000382619500017N/A