Ch. 36 Dysrhythmias

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After providing a patient with discharge instructions on the management of a new permanent pacemaker, the nurse knows that teaching has been effective when the patient states

"I won't lift the arm on the pacemaker side up very high until I see the doctor."

A patient has a junctional escape rhythm on the monitor. The nurse will expect the patient to have a heart rate of _____ beats/minute.

40 to 60

When analyzing an electrocardiographic (ECG) rhythm strip of a patient with a regular heart rhythm, the nurse counts 30 small blocks from one R wave to the next. The nurse calculates the patient's heart rate as ____.

50 There are 1500 small blocks in a minute, and the nurse will divide 1500 by 30.

The nurse has received change-of-shift report about the following patients on the progressive care unit. Which patient should the nurse see first?

A patient whose implantable cardioverter-defibrillator (ICD) fired two times today who has a dose of amiodarone (Cordarone) due

A 20-year-old has a mandatory electrocardiogram (ECG) before participating on a college soccer team and is found to have sinus bradycardia, rate 52. Blood pressure (BP) is 114/54, and the student denies any health problems. What action by the nurse is most appropriate?

Allow the student to participate on the soccer team

A patient develops sinus bradycardia at a rate of 32 beats/minute, has a blood pressure (BP) of 80/42 mm Hg, and is complaining of feeling faint. Which actions should the nurse take next?

Apply the transcutaneous pacemaker (TCP) pads.

A 19-year-old student comes to the student health center at the end of the semester complaining that, "My heart is skipping beats." An electrocardiogram (ECG) shows occasional premature ventricular contractions (PVCs). What action should the nurse take next?

Ask the patient about current stress level and caffeine use.

A patient's cardiac monitor shows sinus rhythm, rate 64. The P-R interval is 0.18 seconds at 1:00 AM, 0.22 seconds at 2:30 PM, and 0.28 seconds at 4:00 PM. Which action should the nurse take next?

Call the health care provider before giving the next dose of metoprolol (Lopressor).

Which action should the nurse perform when preparing a patient with supraventricular tachycardia for cardioversion who is alert and has a blood pressure of 110/66 mm Hg?

Give a sedative before cardioversion is implemented.

A patient who is on the progressive care unit develops atrial flutter, rate 150, with associated dyspnea and chest pain. Which action that is included in the hospital dysrhythmia protocol should the nurse do first?

Give supplemental O2 at 2 to 3 L/min via nasal cannula.

A patient has ST segment changes that support an acute inferior wall myocardial infarction. Which lead would be best for monitoring the patient?

II

After the nurse gives IV atropine to a patient with symptomatic type 1, second-degree atrioventricular (AV) block, which finding indicates that the medication has been effective?

Increase in the patient's heart rate

Which action by a new registered nurse (RN) who is orienting to the progressive care unit indicates a good understanding of the treatment of cardiac dysrhythmias?

Injects IV adenosine (Adenocard) over 2 seconds to a patient with supraventricular tachycardia

Which action will the nurse include in the plan of care for a patient who was admitted with syncopal episodes of unknown origin?

Instruct the patient to call for assistance before getting out of bed.

Which nursing action can the registered nurse (RN) delegate to experienced unlicensed assistive personnel (UAP) working as a telemetry technician on the cardiac care unit?

Observe cardiac rhythms for multiple patients who have telemetry monitoring.

A patient who is complaining of a "racing" heart and feeling "anxious" comes to the emergency department. The nurse places the patient on a heart monitor and obtains the following electrocardiographic (ECG) tracing. Which action should the nurse take next?

Obtain the patient's vital signs including oxygen saturation.

To determine whether there is a delay in impulse conduction through the atria, the nurse will measure the duration of the patient's

P wave.

A patient's cardiac monitor shows a pattern of undulations of varying contours and amplitude with no measurable ECG pattern. The patient is unconscious and pulseless. Which action should the nurse take first?

Perform immediate defibrillation.

A patient who was admitted with a myocardial infarction experiences a 45-second episode of ventricular tachycardia, then converts to sinus rhythm with a heart rate of 98 beats/minute. Which of the following actions should the nurse take next?

Prepare to give IV amiodarone (Cordarone) per agency dysrhythmia protocol.

When analyzing the rhythm of a patient's electrocardiogram (ECG), the nurse will need to investigate further upon finding a(n)

QRS interval of 0.14 second

Which laboratory result for a patient with multifocal premature ventricular contractions (PVCs) is most important for the nurse to communicate to the health care provider?

Serum potassium 2.9 mEq/L

A patient whose heart monitor shows sinus tachycardia, rate 132, is apneic and has no palpable pulses. What is the first action that the nurse should take?

Start cardiopulmonary resuscitation (CPR).

Which intervention by a new nurse who is caring for a patient who has just had an implantable cardioverter-defibrillator (ICD) inserted indicates a need for more education about care of patients with ICDs?

The nurse assists the patient to do active range of motion exercises for all extremities.

Which information will the nurse include when teaching a patient who is scheduled for a radiofrequency catheter ablation for treatment of atrial flutter?

The procedure will use electrical energy to destroy areas of the conduction system.

When preparing to defibrillate a patient. In which order will the nurse perform the following steps? (Put a comma and a space between each answer choice [A, B, C, D, E].)

Turn the defibrillator on. Select the appropriate energy level. Place the paddles on the patient's chest. Check the location of other staff and call out "all clear." Deliver the electrical charge.

The nurse needs to quickly estimate the heart rate for a patient with a regular heart rhythm. Which method will be best to use?

Use the 3-second markers to count the number of QRS complexes in 6 seconds and multiply by 10.

The nurse notes that a patient's cardiac monitor shows that every other beat is earlier than expected, has no visible P wave, and has a QRS complex that is wide and bizarre in shape. How will the nurse document the rhythm?

Ventricular bigeminy

A patient with dilated cardiomyopathy has new onset atrial fibrillation that has been unresponsive to drug therapy for several days. The priority teaching needed for this patient would include information about

anticoagulant therapy.

A patient has a normal cardiac rhythm and a heart rate of 72 beats/minute. The nurse determines that the P-R interval is 0.24 seconds. The most appropriate intervention by the nurse would be to

document the finding and continue to monitor the patient.

A patient reports dizziness and shortness of breath for several days. During cardiac monitoring in the emergency department (ED), the nurse obtains the following electrocardiographic (ECG) tracing. The nurse interprets this heart rhythm as

third-degree atrioventricular (AV) block.

The nurse obtains a rhythm strip on a patient who has had a myocardial infarction and makes the following analysis: no visible P waves, P-R interval not measurable, ventricular rate 162, R-R interval regular, and QRS complex wide and distorted, QRS duration 0.18 second. The nurse interprets the patient's cardiac rhythm as

ventricular tachycardia.


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