A patient with diabetes who takes an oral sulfonylurea has also been diagnosed with hyperten-sion and requires drug therapy. Which antihypertensive drug should not be prescribed for this patient?
a. Calcium channel blocker
b. Beta adrenergic blocker
c. Angiotensin-converting enzyme inhibitor
d. Direct-acting vasodilator
ANS: B
Beta blockers should not be used if possible by diabetic patients. They elevate blood glucose lev-els by increasing hepatic glycogenolysis mediated by α receptors. They also mask the sympathetic nervous system symptoms of hypoglycemia.
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1. To stop the patient's muscle spasms 2. To improve the patient's appearance 3. To promote exercise in the patient 4. To allow the patient increased independence