Not normal. According to querying Dr. Chunyu's information, the normal range of fructosamine is 1.64 to 2.64 mmol/L, while 237umol is not normal. Fructosamine is the plasma fructosamine in the blood vessel wall and other nitrogen-containing compounds in the formation of substances, is used to reflect the recent blood sugar control, if fructosamine is elevated, indicating poor blood sugar control, the presence of diabetes, the need for timely medical attention.