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CLASS IV ANTIDYSRHYTHMIC THERAPY (CALCIUM CHANNEL BLOCKERS) CHAPTER 37 CARDIAC GLYCOSIDES, ANTIANGINALS, AND ANTIDYSRHYTHMICS

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CLASS IV ANTIDYSRHYTHMIC THERAPY (CALCIUM CHANNEL BLOCKERS) CHAPTER 37 CARDIAC GLYCOSIDES, ANTIANGINALS, AND ANTIDYSRHYTHMICS

Institution
CLASS IV ANTIDYSRHYTHMIC THERAPY
Course
CLASS IV ANTIDYSRHYTHMIC THERAPY

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CLASS IV ANTIDYSRHYTHMIC THERAPY
(CALCIUM CHANNEL BLOCKERS) CHAPTER
37 CARDIAC GLYCOSIDES, ANTIANGINALS,
AND ANTIDYSRHYTHMICS

Which effect on the electrocardiogram (ECG) will the nurse expect to see in a
s. s. s. s. s. s. s. s. s. s. s. s. s.


patient who is receiving a Class IV antidysrhythmic drug? - ANSWER-
s. s. s. s. s. s. s. s. s. s. s.


Prolonged PR interval s. s.




Class IV antidysrhythmic drugs prolong PR intervals, which delays the
s. s. s. s. s. s. s. s. s.


atrioventricular conduction, thereby decreasing the heart rate.
s. s. s. s. s. s. s.




Which statement is an accurate description of the mechanism of action for
s. s. s. s. s. s. s. s. s. s. s.


verapamil? - ANSWER-Blocks the slow influx of calcium ions into slow calcium
s. s. s. s. s. s. s. s. s. s. s. s.


channels
s.




Calcium channel blockers block the slow influx of calcium ions into the slow
s. s. s. s. s. s. s. s. s. s. s. s.


calcium channels.
s. s.




Which cardiovascular condition is treated with nondihydropyridine calcium
s. s. s. s. s. s. s.


channel blockers? - ANSWER-Supraventricular tachycardia
s. s. s. s. s.




Calcium channel blockers are indicated for supraventricular tachycardia, atrial
s. s. s. s. s. s. s. s.


dysrhythmias, hypertension, and angina.
s. s. s. s.

, Which route of administration for verapamil is appropriate for maintenance
s. s. s. s. s. s. s. s. s.


therapy? - ANSWER-Oral verapamil is administered for maintenance therapy.
s. s. s. s. s. s. s. s. s.


Oral verapamil is usually administered along with digoxin.
s. s. s. s. s. s. s. s.




Mr. Allen, a 73-year-old patient with a history of mitral valve regurgitation, is
s. s. s. s. s. s. s. s. s. s. s. s.


admitted to the hospital with chest pain. His ECG shows atrial fibrillation at a
s. s. s. s. s. s. s. s. s. s. s. s. s. s.


rate of 140 beats/min. He is initially treated with verapamil 5 mg IV push for
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


two doses before he converts to sinus rhythm with a rate of 86 beats/min.
s. s. s. s. s. s. s. s. s. s. s. s. s. s.




To prevent further dysrhythmias, Mr. Allen is prescribed verapamil 80 mg PO
s. s. s. s. s. s. s. s. s. s. s.


TID. The nurse's assessment indicates Mr. Allen has no more chest pain. His
s. s. s. s. s. s. s. s. s. s. s. s. s.


lungs are clear, and his abdomen is soft. He has 1+ edema to his ankles and
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


feet bilaterally. Mr. Allen's vital signs are as follows: BP 124/66, HR 56, R 20,
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


and T 97.8°F.
s. s. s.




Which of Mr. Allen's vital sign findings will indicate to the nurse to hold the
s. s. s. s. s. s. s. s. s. s. s. s. s. s.


verapamil? - ANSWER-Pulse of 56 beats/min
s. s. s. s. s. s.




Mr. Allen, a 73-year-old patient with a history of mitral valve regurgitation, is
s. s. s. s. s. s. s. s. s. s. s. s.


admitted to the hospital with chest pain. His ECG shows atrial fibrillation at a
s. s. s. s. s. s. s. s. s. s. s. s. s. s.


rate of 140 beats/min. He is initially treated with verapamil 5 mg IV push for
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


two doses before he converts to sinus rhythm with a rate of 86 beats/min.
s. s. s. s. s. s. s. s. s. s. s. s. s. s.




To prevent further dysrhythmias, Mr. Allen is prescribed verapamil 80 mg PO
s. s. s. s. s. s. s. s. s. s. s.


TID. The nurse's assessment indicates Mr. Allen has no more chest pain. His
s. s. s. s. s. s. s. s. s. s. s. s. s.


lungs are clear, and his abdomen is soft. He has 1+ edema to his ankles and
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


feet bilaterally. Mr. Allen's vital signs are as follows: BP 124/66, HR 56, R 20,
s. s. s. s. s. s. s. s. s. s. s. s. s. s. s.


and T 97.8°F.
s. s. s.

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Institution
CLASS IV ANTIDYSRHYTHMIC THERAPY
Course
CLASS IV ANTIDYSRHYTHMIC THERAPY

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