A diabetic patient with iron deficiency may develop problems in glucose control.

Patient selection: diabetic patient who is iron deficient


Manifestations of poor glucose control in a patient who is iron deficient:

(1) increase in hemoglobin A1c levels despite optimum management

(2) increase in insulin needs and/or poorly controlled glucose


If these are due to iron deficiency, then they should improve when the patient is iron replete.


The changes may be most noticeable in a previously well-controlled diabetic who becomes iron deficient.

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