The client with Type 1 diabetes is scheduled for a CT scan of the abdomen with contrast. The client is taking metformin (Glucophage), a biguanide, and 70/30 insulin 24 units at 0700 and 1600. Which...

The client with Type 1 diabetes is scheduled for a CT scan of the abdomen with contrast. The client is taking metformin (Glucophage), a biguanide, and 70/30 insulin 24 units at 0700 and 1600. Which instruction should the nurse discuss with the client?

1. Administer the 70/30 insulin the morning of the test.

2. Take half the dose of the morning insulin on the day of the test.

3. Do not take the Glucophage after the procedure until the HCP approves.

4. Take the medications as prescribed because they will not affect the test.