ATI LPN
Timby's Introductory Medical-Surgical Nursing Thirteenth, North American Edition
Chapter 26 : Caring for Clients With Cardiac Arrhythmias Questions
Question 1 of 5
Which of the following does the nurse recognize as the therapeutic goal of radiofrequency catheter ablation for a client with cardiac arrhythmias?
Correct Answer: C
Rationale: The therapeutic goal of radiofrequency catheter ablation is to destroy errant tissue, in hopes of allowing impulse conduction to travel over appropriate pathways. The goal does not include dilation of blood vessels or reperfusion of heart tissue. There is no stimulation of the heart.
Question 2 of 5
The nurse is preparing to defibrillate a client with no breathing or pulse. Which nursing action precedes the nurse pressing the discharge button?
Correct Answer: C
Rationale: Preceding pressing the discharge button, the nurse shouts 'All clear' to ensure that no one is in contact with the client. The other options are correct but not the nursing action immediately preceding.
Question 3 of 5
The nurse is working on a monitored unit assessing the cardiac monitor rhythms. Which waveform pattern needs attention first?
Correct Answer: D
Rationale: Ventricular fibrillation is called the rhythm of a dying heart. It is the rhythm that needs attention first because there is no cardiac output, and it is an indication for CPR and immediate defibrillation. Sustained asystole either is from death, or the client is off of the cardiac monitor. Supraventricular tachycardia and atrial fibrillation are monitored and reported to the physician but not addressed first.
Question 4 of 5
Which diagnostic study best evaluates different medications' ability to restore normal heart rhythm?
Correct Answer: C
Rationale: An electrophysiology study is a procedure that enables the physician to examine the electrical activity of the heart, produce actual arrhythmias, and determine the best method for care. Cardioversion uses synchronized electricity to change the rhythm pattern. Electrocardiogram and echocardiograms provide diagnostic information.
Question 5 of 5
The nurse and student nurse are observing a cardioversion procedure. The nurse is correct to tell the student that electrical current will be initiated at which time?
Correct Answer: C
Rationale: The electrical current is initiated at the R wave when ventricular depolarization occurs. The electrical current completely depolarizes the entire myocardium with the goal of restoring the normal pacemaker of the heart.