Jessica Levine
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Nursing (Cardiac) Quiz on Chapter 26, created by Jessica Levine on 06/10/2016.

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Jessica Levine
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Chapter 26

Question 1 of 40

1

The nurse is caring for a patient who has had an ECG. The nurse notes that leads I, II, and III differ from one another on the cardiac rhythm strip. How should the nurse best respond?

Select one of the following:

  • Recognize that the view of the electrical current changes in relation to the lead placement.

  • Recognize that the electrophysiological conduction of the heart differs with lead placement.

  • Inform the technician that the ECG equipment has malfunctioned.

  • Inform the physician that the patient is experiencing a new onset of dysrhythmia.

Explanation

Question 2 of 40

1

The nurse is analyzing a rhythm strip. What component of the ECG corresponds to the resting state of the patient’s heart?

Select one of the following:

  • P wave

  • T wave

  • U wave

  • QRS complex

Explanation

Question 3 of 40

1

The nursing educator is presenting a case study of an adult patient who has abnormal ventricular depolarization. This pathologic change would be most evident in what component of the ECG?

Select one of the following:

  • P wave

  • T wave

  • QRS complex

  • U wave

Explanation

Question 4 of 40

1

An adult patient with third-degree AV block is admitted to the cardiac care unit and placed on continuous cardiac monitoring. What rhythm characteristic will the ECG most likely show?

Select one of the following:

  • PP interval & RR interval are irregular

  • PP interval is equal to RR interval

  • Fewer QRS complexes than P waves

  • PR interval is constant

Explanation

Question 5 of 40

1

The nurse is writing a plan of care for a patient with a cardiac dysrhythmia. What would be the most appropriate goal for the patient?

Select one of the following:

  • Maintain a resting heart rate below 70 bpm.

  • Maintain adequate control of chest pain.

  • Maintain adequate cardiac output.

  • Maintain normal cardiac structure.

Explanation

Question 6 of 40

1

A patient has returned to the cardiac care unit after having a permanent pacemaker implantation. For which potential complication should the nurse most closely assess this patient?

Select one of the following:

  • Chest pain

  • Bleeding at the implantation site

  • Malignant hyperthermia

  • Bradycardia

Explanation

Question 7 of 40

1

A patient the nurse is caring for has a permanent pacemaker implanted with the identification code beginning with VVI. What does this indicate?

Select one of the following:

  • Ventricular paced, ventricular sensed, inhibited

  • Variable paced, ventricular sensed, inhibited

  • Ventricular sensed, ventricular situated, implanted

  • Variable sensed, variable paced, inhibited

Explanation

Question 8 of 40

1

The nurse is caring for an adult patient who has gone into ventricular fibrillation. When assisting with defibrillating the patient, what must the nurse do?

Select one of the following:

  • Maintain firm contact between paddles and patient skin.

  • Apply a layer of water as a conducting agent.

  • Call “all clear” once before discharging the defibrillator.

  • Ensure the defibrillator is in the sync mode.

Explanation

Question 9 of 40

1

A patient who is a candidate for an implantable cardioverter defibrillator (ICD) asks the nurse about the purpose of this device. What would be the nurse’s best response?

Select one of the following:

  • “To detect and treat dysrhythmias such as ventricular fibrillation and ventricular tachycardia”

  • “To detect and treat bradycardia, which is an excessively slow heart rate”

  • “To detect and treat atrial fibrillation, in which your heart beats too quickly and inefficiently”

  • “To shock your heart if you have a heart attack at home”

Explanation

Question 10 of 40

1

A nurse is providing health education to a patient scheduled for cryoablation therapy. The nurse should describe what aspect of this treatment?

Select one of the following:

  • Peeling away the area of endocardium responsible for the dysrhythmia

  • Using electrical shocks directly to the endocarduim to eliminate the source of dysrhythmia

  • Using high-frequency sound waves to eliminate the source of dysrhythmia

  • Using a cooled probe to eliminate the source of dysrhythmia

Explanation

Question 11 of 40

1

The nurse is caring for a patient who has just had an implantable cardioverter defibrillator (ICD) placed. What is the priority area for the nurse’s assessment?

Select one of the following:

  • Assessing the patient’s activity level

  • Facilitating transthoracic echocardiography

  • Vigilant monitoring of the patient’s ECG

  • Close monitoring of the patient’s peripheral perfusion

Explanation

Question 12 of 40

1

During a patient’s care conference, the team is discussing whether the patient is a candidate for cardiac conduction surgery. What would be the most important criterion for a patient to have this surgery?

Select one of the following:

  • Angina pectoris not responsive to other treatments

  • Decreased activity tolerance related to decreased cardiac output

  • Atrial and ventricular tachycardias not responsive to other treatments

  • Ventricular fibrillation not responsive to other treatments

Explanation

Question 13 of 40

1

A nurse is caring for a patient who is exhibiting ventricular tachycardia (VT). Because the patient is pulseless, the nurse should prepare for what intervention?

Select one of the following:

  • Defibrillation

  • ECG monitoring

  • Implantation of a cardioverter defibrillator

  • Angioplasty

Explanation

Question 14 of 40

1

A patient converts from normal sinus rhythm at 80 bpm to atrial fibrillation with a ventricular response at 166 bpm. Blood pressure is 162/74 mm Hg. Respiratory rate is 20 breaths per minute with normal chest expansion and clear lungs bilaterally. IV heparin and Cardizem are given. The nurse caring for the patient understands that the main goal of treatment is what?

Select one of the following:

  • Decrease SA node conduction

  • Control ventricular heart rate

  • Improve oxygenation

  • Maintain anticoagulation

Explanation

Question 15 of 40

1

The nurse and the other members of the team are caring for a patient who converted to ventricular fibrillation (VF). The patient was defibrillated unsuccessfully and the patient remains in VF. According to national standards, the nurse should anticipate the administration of what medication?

Select one of the following:

  • Epinephrine 1 mg IV push

  • Lidocaine 100 mg IV push

  • Amiodarone 300 mg IV push

  • Sodium bicarbonate 1 amp IV push

Explanation

Question 16 of 40

1

The nurse is planning discharge teaching for a patient with a newly inserted permanent pacemaker. What is the priority teaching point for this patient?

Select one of the following:

  • Start lifting the arm above the shoulder right away to prevent chest wall adhesion.

  • Avoid cooking with a microwave oven.

  • Avoid exposure to high-voltage electrical generators.

  • Avoid walking through store and library antitheft devices.

Explanation

Question 17 of 40

1

A patient is brought to the ED and determined to be experiencing symptomatic sinus bradycardia. The nurse caring for this patient is aware the medication of choice for treatment of this dysrhythmia is the administration of atropine. What guidelines will the nurse follow when administering atropine?

Select one of the following:

  • Administer atropine 0.5 mg as an IV bolus every 3 to 5 minutes to a maximum of 3.0 mg.

  • Administer atropine as a continuous infusion until symptoms resolve.

  • Administer atropine as a continuous infusion to a maximum of 30 mg in 24 hours.

  • Administer atropine 1.0 mg sublingually.

Explanation

Question 18 of 40

1

An ECG has been ordered for a newly admitted patient. What should the nurse do prior to electrode placement?

Select one of the following:

  • Clean the skin with providone-iodine solution.

  • Ensure that the area for electrode placement is dry.

  • Apply tincture of benzoin to the electrode sites and wait for it to become “tacky.”

  • Gently abrade the skin by rubbing the electrode sites with dry gauze or cloth.

Explanation

Question 19 of 40

1

The nurse is caring for a patient who has just undergone catheter ablation therapy. The nurse in the step-down unit should prioritize what assessment?

Select one of the following:

  • Cardiac monitoring

  • Monitoring the implanted device signal

  • Pain assessment

  • Monitoring the patient’s level of consciousness (LOC)

Explanation

Question 20 of 40

1

The ED nurse is caring for a patient who has gone into cardiac arrest. During external defibrillation, what action should the nurse perform?

Select one of the following:

  • Place gel pads over the apex and posterior chest for better conduction.

  • Ensure no one is touching the patient at the time shock is delivered.

  • Continue to ventilate the patient via endotracheal tube during the procedure.

  • Allow at least 3 minutes between shocks.

Explanation

Question 21 of 40

1

A group of nurses are participating in orientation to a telemetry unit. What should the staff educator tell this class about ST segments?

Select one of the following:

  • They are the part of an ECG that reflects systole.

  • They are the part of an ECG used to calculate ventricular rate and rhythm.

  • They are the part of an ECG that reflects the time from ventricular depolarization through repolarization.

  • They are the part of an ECG that represents early ventricular repolarization.

Explanation

Question 22 of 40

1

The nurse is providing care to a patient who has just undergone an electrophysiologic (EP) study. The patient states that she is nervous about “things going wrong” during the procedure. What is the nurse’s best response?

Select one of the following:

  • “This is basically a risk-free procedure.”

  • “Thousands of patients undergo EP every year.”

  • “Remember that this is a step that will bring you closer to enjoying good health.”

  • “The whole team will be monitoring you very closely for the entire procedure.”

Explanation

Question 23 of 40

1

New nurses on the telemetry unit have been paired with preceptors. One new nurse asks her preceptor to explain depolarization. What would be the best answer by the preceptor?

Select one of the following:

  • “Depolarization is the mechanical contraction of the heart muscles.”

  • “Depolarization is the electrical stimulation of the heart muscles.”

  • “Depolarization is the electrical relaxation of the heart muscles.”

  • “Depolarization is the mechanical relaxation of the heart muscles.”

Explanation

Question 24 of 40

1

A cardiac care nurse is aware of factors that result in positive chronotropy. These factors would affect a patient’s cardiac function in what way?

Select one of the following:

  • Exacerbating an existing dysrhythmia

  • Initiating a new dysrhythmia

  • Resolving ventricular tachycardia

  • Increasing the heart rate

Explanation

Question 25 of 40

1

The nurse is caring for a patient with refractory atrial fibrillation who underwent the maze procedure several months ago. The nurse reviews the result of the patient’s most recent cardiac imaging, which notes the presence of scarring on the atria. How should the nurse best respond to this finding?

Select one of the following:

  • Recognize that the procedure was unsuccessful.

  • Recognize this as a therapeutic goal of the procedure.

  • Liaise with the care team in preparation for repeating the maze procedure.

  • Prepare the patient for pacemaker implantation.

Explanation

Question 26 of 40

1

A patient is scheduled for catheter ablation therapy. When describing this procedure to the patient’s family, the nurse should address what aspect of the treatment?

Select one of the following:

  • Resetting of the heart’s contractility

  • Destruction of specific cardiac cells

  • Correction of structural cardiac abnormalities

  • Clearance of partially occluded coronary arteries

Explanation

Question 27 of 40

1

A patient has undergone diagnostic testing and received a diagnosis of sinus bradycardia attributable to sinus node dysfunction. When planning this patient’s care, what nursing diagnosis is most appropriate?

Select one of the following:

  • Acute pain

  • Risk for unilateral neglect

  • Risk for activity intolerance

  • Risk for fluid volume excess

Explanation

Question 28 of 40

1

The nurse is caring for a patient on telemetry. The patient’s ECG shows a shortened PR interval, slurring of the initial QRS deflection, and prolonged QRS duration. What does this ECG show?

Select one of the following:

  • Sinus bradycardia

  • Myocardial infarction

  • Lupus-like syndrome

  • Wolf-Parkinson-White (WPW) syndrome

Explanation

Question 29 of 40

1

A patient is undergoing preoperative teaching before his cardiac surgery and the nurse is aware that a temporary pacemaker will be placed later that day. What is the nurse’s responsibility in the care of the patient’s pacemaker?

Select one of the following:

  • Monitoring for pacemaker malfunction or battery failure

  • Determining when it is appropriate to remove the pacemaker

  • Making necessary changes to the pacemaker settings

  • Selecting alternatives to future pacemaker use

Explanation

Question 30 of 40

1

The nurse caring for a patient whose sudden onset of sinus bradycardia is not responding adequately to atropine. What might be the treatment of choice for this patient?

Select one of the following:

  • Implanted pacemaker

  • Trancutaneous pacemaker

  • ICD

  • Asynchronous defibrillator

Explanation

Question 31 of 40

1

The nurse is caring for a patient who has had a dysrhythmic event. The nurse is aware of the need to assess for signs of diminished cardiac output (CO). What change in status may signal to the nurse a decrease in cardiac output?

Select one of the following:

  • Increased blood pressure

  • Bounding peripheral pulses

  • Changes in level of consciousness

  • Skin flushing

Explanation

Question 32 of 40

1

Following cardiac resuscitation, a patient has been placed in a state of mild hypothermia before being transferred to the cardiac intensive care unit. The nurse’s assessment reveals that the patient is experiencing neuromuscular paralysis. How should the nurse best respond?

Select one of the following:

  • Administer hypertonic IV solution.

  • Administer a bolus of warned normal saline.

  • Reassess the patient in 15 minutes.

  • Document this as an expected assessment finding.

Explanation

Question 33 of 40

1

The nurse is caring for a patient who has had a biventricular pacemaker implanted. When planning the patient’s care, the nurse should recognize what goal of this intervention?

Select one of the following:

  • Resynchronization

  • Defibrillation

  • Angioplasty

  • Ablation

Explanation

Question 34 of 40

1

When planning the care of a patient with an implanted pacemaker, what assessment should the nurse prioritize?

Select one of the following:

  • Core body temperature

  • Heart rate and rhythm

  • Blood pressure

  • Oxygen saturation level

Explanation

Question 35 of 40

1

The nurse is assessing a patient who had a pacemaker implanted 4 weeks ago. During the patient’s most recent follow-up appointment, the nurse identifies data that suggest the patient may be socially isolated and depressed. What nursing diagnosis is suggested by these data?

Select one of the following:

  • Decisional conflict related to pacemaker implantation

  • Deficient knowledge related to pacemaker implantation

  • Spiritual distress related to pacemaker implantation

  • Ineffective coping related to pacemaker implantation

Explanation

Question 36 of 40

1

The nurse is caring for a patient who is in the recovery room following the implantation of an ICD. The patient has developed ventricular tachycardia (VT). What should the nurse assess and document?

Select one of the following:

  • ECG to compare time of onset of VT and onset of device’s shock

  • ECG so physician can see what type of dysrhythmia the patient has

  • Patient’s level of consciousness (LOC) at the time of the dysrhythmia

  • Patient’s activity at time of dysrhythmia

Explanation

Question 37 of 40

1

The staff educator is teaching a CPR class. Which of the following aspects of defibrillation should the educator stress to the class?

Select one of the following:

  • Apply the paddles directly to the patient’s skin.

  • Use a conducting medium between the paddles and the skin.

  • Always use a petroleum-based gel between the paddles and the skin.

  • Any available liquid can be used between the paddles and the skin.

Explanation

Question 38 of 40

1

During a CPR class, a participant asks about the difference between cardioversion and defibrillation. What would be the instructor’s best response?

Select one of the following:

  • “Cardioversion is done on a beating heart; defibrillation is not.”

  • “The difference is the timing of the delivery of the electric current.”

  • “Defibrillation is synchronized with the electrical activity of the heart, but cardioversion is not.”

  • “Cardioversion is always attempted before defibrillation because it has fewer risks.”

Explanation

Question 39 of 40

1

A patient is admitted to the cardiac care unit for an electrophysiology (EP) study. What goal should guide the planning and execution of the patient’s care?

Select one of the following:

  • Ablate the area causing the dysrhythmia.

  • Freeze hypersensitive cells.

  • Diagnose the dysrhythmia.

  • Determine the nursing plan of care.

Explanation

Question 40 of 40

1

A patient calls his cardiologist’s office and talks to the nurse. He is concerned because he feels he is being defibrillated too often. The nurse tells the patient to come to the office to be evaluated because the nurse knows that the most frequent complication of ICD therapy is what?

Select one of the following:

  • Infection

  • Failure to capture

  • Premature battery depletion

  • Oversensing of dysrhythmias

Explanation