Which information is most important for the nurse to report to the health care provider before a patient with type 2 diabetes is prepared for a coronary angiogram?
a. The patient's most recent HbA1C was 6.5%.
b. The patient's admission blood glucose is 128 mg/dL.
c. The patient took the prescribed metformin (Glucophage) today.
d. The patient took the prescribed captopril (Capoten) this morning.
ANS: C
To avoid lactic acidosis, metformin should be discontinued a day or 2 before the coronary arteriogram and should not be used for 48 hours after IV contrast media are administered. The other patient data will also be reported but do not indicate any need to reschedule the procedure.
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