Chapter 23: Drugs Used to Treat Dysrhythmias with complete solutions 2023

Chapter 23: Drugs Used to Treat Dysrhythmias with complete solutions 2023What is the action of amiodarone (Cordarone), a class III agent used to treat cardiac dysrhythmias? It slows the rate of electrical conduction and prolongs the time between contractions. How many milligrams of lidocaine will the nurse administer via intravenous (IV) bolus to a 30-year-old patient with ventricular tachycardia who weighs 75 kg after a myocardial infarction? 75 A patient is taking amiodarone (Cordarone) for hypertrophic cardiomyopathy and begins to complain of dizziness. What will the nurse instruct the patient to do? Change positions slowly. A patient who is started on phenytoin (Dilantin), who is also taking amiodarone (Cordarone), should be assessed for what possible effect? Increase in serum phenytoin levels Which lidocaine preparation is appropriate for the treatment of cardiac dysrhythmias? Injectable lidocaine without preservative Patients who are on neuromuscular blocking agents and lidocaine must be closely observed for which complication? Respiratory depression Which statement is true regarding the antidysrhythmic agent adenosine (Adenocard)? It is a naturally occurring chemical in the body. Amiodarone is contraindicated for patients with which condition? Severe sinus node dysfunction causing bradycardia The patient recently prescribed quinidine is at highest risk for which common adverse effect? Diarrhea Which symptom will the nurse encourage the patient taking flecainide to report to the health care provider? Weight gain A patient is admitted to the acute care telemetry unit with a diagnosis of atrial fibrillation. The physician orders dofetilide (Tikosyn). Before initiating this medication, the nurse will assess potassium level. A patient is admitted to the telemetry unit with a diagnosis of cardiovascular disease. When performing the initial assessment, the nurse records blood pressure in the left arm of 142/84, blood pressure in the right arm of 138/80, temperature of 98.8° F, and radial pulse of 80 that is weak and irregular. The nurse should notify the physician regarding pulse only. The nurse is assessing a patient who was recently admitted to the emergency department with dysrhythmias and shortness of breath. Which baseline nursing assessment(s) should be the priority(ies)? (Select all that apply.) a. ECG monitoring b. Medication history c. Oxygen saturation d. Presence of chest pain, dyspnea, and fatigue e. Mental status The nurse is preparing to administer adenosine to a patient with supraventricular tachycardia. Which consideration(s) should the nurse take into account before administration? (Select all that apply.) a. Constant ECG monitoring is necessary. c. Rapid IV bolus administration is recommended. d. Saline flush following bolus is necessary.