N221 Ch 19 NCLEX Practice Questions and Solutions

Nonselective beta blockers may be used to treat hypertension and -chronic obstructive pulmonary disease (COPD). -heart failure. -heart block. -supraventricular dysrhythmias. -supraventricular dysrhythmias. Nonselective beta blockers are used to treat supraventricular dysrhythmias secondary to their negative chronotropic effects (decreasing heart rate). They may exacerbate heart failure, COPD, and heart block secondary to their negative inotropic effect (heart failure), blocking of bronchodilation (COPD), and negative chronotropic effects (heart block). An example of a cardioselective beta blocker includes -propranolol (Inderal). -labetalol (Normodyne). -atenolol (Tenormin). -sotalol (Betapace). atenolol (Tenormin). At therapeutic dosages, atenolol selectively blocks only the beta1 receptors in the heart, not the beta2 receptors located in the lungs. When teaching a patient about beta blockers such as atenolol (Tenormin) and metoprolol (Lopressor), it is important to inform the patient that -these medications may be taken with antacids to minimize gastrointestinal distress. -hot baths and showers will help enhance the therapeutic effects and are encouraged. -alcohol intake is encouraged for its vasodilating effects. -abrupt medication withdrawal may lead to a rebound hypertensive crisis. -abrupt medication withdrawal may lead to a rebound hypertensive crisis. Abrupt withdrawal of a beta-blocking drug can cause rebound hypertension. These drugs should be gradually decreased. Propranolol (Inderal) is an effective -selective alpha-adrenergic antagonist. -nonselective beta-adrenergic antagonist. -beta1-adrenergic antagonist. -beta2-adrenergic antagonist. -nonselective beta-adrenergic antagonist.