A patient with Type II Diabetes on oral hypoglycemic therapy is scheduled for angiography using IV contrast dye. What teaching should the nurse include?

"Do not take your metformin (biguanide) until 48 hours after your procedure."

"If you take repaglinide (meglitinide), do not eat breakfast before your procedure."

"Glipizide (sulfonylurea) will protect your kidneys from the effects of the contrast."

"Be sure to take your medications so you don't become hyperglycemic."