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. 2019 Jan 14;40(3):789–824. doi: 10.1210/er.2018-00163

Table 4.

Factors Limiting the Diagnosis of TD in Patients With DM

• The clinical diagnosis may be delayed because symptoms are masked by DM
• Diabetes-induced alterations of HPT axis with reduced levels of TRH and TSH
• Decreased T4-to-T3 conversion, especially in poorly controlled diabetes
• Low T3 syndrome in diabetic ketoacidosis
• Potential interference of TH binding inhibitor on T3 production
• Effect of oral hypoglycemic agents on serum TSH levels