A diabetic client has been diagnosed with hypertension, and the physician has prescribed atenolol (Tenormin), a beta-blocker. When performing discharge teaching, it is important for the client to...

A diabetic client has been diagnosed with hypertension, and the physician has prescribed atenolol (Tenormin), a beta-blocker. When performing discharge teaching, it is important for the client to recognize that the addition of Tenormin can cause:

1. A decrease in the hypoglycemic effects of insulin.

3. An increase in the hypoglycemic effects of insulin.

3. An increase in the incidence of ketoacidosis.

4. A decrease in the incidence of ketoacidosis.