NCLEX cardiac questions (all Answered)

The nurse in the telemetry unit explains two nonpharmacological treatments such as ___________, or ___________, can be used to treat dysrhythmias. A) ECG; pacemaker B) Cardioversion; defibrillation C) Aspirin; Plavix D) Exercise; stress test correct answers B) Cardioversion; defibrillation The more serious types of dysrhythmias are corrected through electrical shock of the heart, a treatment called elective cardioversion, or defibrillation. The client is scheduled for implantable cardioverter defibrillators (ICD) for treatment of a dysrhythmia. The nurse explains that the action of this procedure is to: A) Trigger electrical impulses to the heart. B) Take over SA node function. C) Block AV node transmission of impulses. D) Increase ventricular conduction. correct answers A) Trigger electrical impulses to the heart. The nurse recognizes the action of beta blockers for treatment of dysrhythmias is: A) Positive inotropic effect. B) Negative inotropic effect. C) Positive chronotropic effect. D) Negative chronotropic effect. correct answers D) Negative chronotropic effect. Beta blockers slow the heart rate (negative chronotropic effect) and decrease conduction velocity through the AV node. A client with a diagnosis of cardiac dysrhythmias and a history of type I diabetes mellitus is placed on propranolol therapy. The client asks the nurse if the drug will affect insulin needs. The best response by the nurse would be that: A) The drug will have no effect on insulin needs. B) The drug might cause hypoglycemia. C) The drug could cause hyperglycemia. D) The client should ask the physician this question. correct answers B) The drug might cause hypoglycemia. Rationale: There is increased incidence of hypoglycemia with type I diabetes mellitus, because propranolol can inhibit glycogenolysis. The nurse discusses mineral therapy with a client diagnosed with atrial fibrillation. Which of the following deficiencies will the nurse most likely discuss with the client?