Question 1

Interpret the following rhythm:

Accepted Answer

A)  Atrial pacing 
B)  Ventricular pacing 
C)  Dual-chamber pacing 
D)  Transcutaneous pacing 
A)  Atrial pacing 
B)  Ventricular pacing 
C)  Dual-chamber pacing 
D)  Transcutaneous pacing

Question 2

The QT interval is the total time taken for ventricular depolarization and repolarization.Prolongation of the QT interval:

Accepted Answer

A)  decreases the risk of lethal dysrhythmias. 
B)  usually occurs when heart rate increases. 
C)  increases the risk of lethal dysrhythmias. 
D)  can only be measured with irregular rhythms. 
A)  decreases the risk of lethal dysrhythmias. 
B)  usually occurs when heart rate increases. 
C)  increases the risk of lethal dysrhythmias. 
D)  can only be measured with irregular rhythms.

Question 3

Which of the following are common causes of sinus tachycardia? (Select all that apply.)

Accepted Answer

A)  Hyperthyroidism 
B)  Hypovolemia 
C)  Hypothyroidism 
D)  Heart Failure 
E)  Sleep 
A)  Hyperthyroidism 
B)  Hypovolemia 
C)  Hypothyroidism 
D)  Heart Failure 
E)  Sleep

Question 4

The nurse is examining the patient's cardiac rhythm strip in lead II and notices that all of the P waves are upright and look the same except one that has a different shape and is inverted.The nurse realizes that the P wave with the abnormal shape is probably:

Accepted Answer

A)  from the SA node since all P waves come from the SA node. 
B)  from some area in the atria other than the SA node. 
C)  indicative of ventricular depolarization. 
D)  normal even though it is inverted in lead II. 
A)  from the SA node since all P waves come from the SA node. 
B)  from some area in the atria other than the SA node. 
C)  indicative of ventricular depolarization. 
D)  normal even though it is inverted in lead II.

Question 5

Interpret the following rhythm:

Accepted Answer

A)  Sinus rhythm with multifocal premature ventricular contractions 
B)  Sinus rhythm with unifocal premature ventricular contractions 
C)  Sinus rhythm with bigeminal premature ventricular contractions 
D)  Sinus rhythm with paired premature ventricular contractions (couplets) 
A)  Sinus rhythm with multifocal premature ventricular contractions 
B)  Sinus rhythm with unifocal premature ventricular contractions 
C)  Sinus rhythm with bigeminal premature ventricular contractions 
D)  Sinus rhythm with paired premature ventricular contractions (couplets)

Question 6

The patient is admitted with a fever and rapid heart rate.The patient's temperature is 103° F ( 39.4° C ).The nurse places the patient on a cardiac monitor and finds the patient's atrial and ventricular rates are above 105 beats per minute.P waves are clearly seen and appear normal in configuration.QRS complexes are normal in appearance and 0.08 seconds wide.The rhythm is regular,and blood pressure is normal.The nurse should focus on providing:

Accepted Answer

A)  medications to lower heart rate. 
B)  treatment to lower temperature. 
C)  treatment to lower cardiac output. 
D)  treatment to reduce heart rate. 
A)  medications to lower heart rate. 
B)  treatment to lower temperature. 
C)  treatment to lower cardiac output. 
D)  treatment to reduce heart rate.

Question 7

The normal width of the QRS complex is which of the following? (Select all that apply.)

Accepted Answer

A)  0.06 to 0.10 seconds. 
B)  0.12 to 0.20 seconds. 
C)  1.5 to 2.5 small boxes. 
D)  3.0 to 5.0 small boxes. 
E)  0.04 seconds or greater. 
A)  0.06 to 0.10 seconds. 
B)  0.12 to 0.20 seconds. 
C)  1.5 to 2.5 small boxes. 
D)  3.0 to 5.0 small boxes. 
E)  0.04 seconds or greater.

Question 8

The normal rate for the SA node when the patient is at rest is:

Accepted Answer

A)  40 to 60 beats per minute. 
B)  60 to 100 beats per minute. 
C)  20 to 40 beats per minute. 
D)  more than100 beats per minute. 
A)  40 to 60 beats per minute. 
B)  60 to 100 beats per minute. 
C)  20 to 40 beats per minute. 
D)  more than100 beats per minute.

Question 9

The patient is scheduled to have a permanent pacemaker implanted.The patient asks the nurse,"How long will the battery in this thing last?" The nurse should answer,

Accepted Answer

A)  "Life expectancy is about 1 year. Then it will need to be replaced." 
B)  "Pacemaker batteries can last up to 25 years with constant use." 
C)  "Battery life varies depending on usage, but it can last up to 10 years." 
D)  "Pacemakers are used to treat temporary problems so the batteries don't last long." 
A)  "Life expectancy is about 1 year. Then it will need to be replaced." 
B)  "Pacemaker batteries can last up to 25 years with constant use." 
C)  "Battery life varies depending on usage, but it can last up to 10 years." 
D)  "Pacemakers are used to treat temporary problems so the batteries don't last long."

Question 10

Interpret the following rhythm:

Accepted Answer

A)  Normal sinus rhythm 
B)  Sinus bradycardia 
C)  Sinus tachycardia 
D)  Sinus arrhythmia 
A)  Normal sinus rhythm 
B)  Sinus bradycardia 
C)  Sinus tachycardia 
D)  Sinus arrhythmia

Question 11

The nurse notices that the patient has a first-degree AV block.Everything else about the rhythm is normal.The nurse should:

Accepted Answer

A)  prepare to place the patient on a transcutaneous pacemaker. 
B)  give the patient atropine to shorten the PR interval. 
C)  monitor the rhythm and patient's condition. 
D)  give the patient an antiarrhythmic medication. 
A)  prepare to place the patient on a transcutaneous pacemaker. 
B)  give the patient atropine to shorten the PR interval. 
C)  monitor the rhythm and patient's condition. 
D)  give the patient an antiarrhythmic medication.

Question 12

Because of the location of the AV node,the possible P waveforms that are associated with junctional rhythms include which of the following? (Select all that apply.)

Accepted Answer

A)  No P wave 
B)  Inverted P wave 
C)  Shortened PR interval 
D)  P wave after the QRS complex 
E)  Normal P wave and PR interval 
A)  No P wave 
B)  Inverted P wave 
C)  Shortened PR interval 
D)  P wave after the QRS complex 
E)  Normal P wave and PR interval

Question 13

Interpret the following rhythm:

Accepted Answer

A)  Atrial flutter with variable conduction 
B)  Ventricular fibrillation 
C)  Atrial fibrillation 
D)  Atrial flutter with RVR (rapid ventricular response) 
A)  Atrial flutter with variable conduction 
B)  Ventricular fibrillation 
C)  Atrial fibrillation 
D)  Atrial flutter with RVR (rapid ventricular response)

Question 14

Which of the following is true about a patient diagnosed with sinus arrhythmia?

Accepted Answer

A)  The heart rate varies, dependent on vagal tone and respiratory pattern. 
B)  Immediate treatment is essential to prevent death. 
C)  Sinus arrhythmia is not well tolerated by most patients. 
D)  PR and QRS interval measurements are prolonged. 
A)  The heart rate varies, dependent on vagal tone and respiratory pattern. 
B)  Immediate treatment is essential to prevent death. 
C)  Sinus arrhythmia is not well tolerated by most patients. 
D)  PR and QRS interval measurements are prolonged.

Question 15

The nurse is caring for a patient who has atrial fibrillation.Sequelae that place the patient at greater risk for mortality/morbidity include which of the following? (Select all that apply.)

Accepted Answer

A)  Stroke 
B)  Ashman beats 
C)  Pulmonary emboli 
D)  Prolonged PR interval 
E)  Decreased cardiac output 
A)  Stroke 
B)  Ashman beats 
C)  Pulmonary emboli 
D)  Prolonged PR interval 
E)  Decreased cardiac output

Question 16

Interpret the following rhythm:

Accepted Answer

A)  Sinus rhythm with PACs 
B)  Normal sinus rhythm 
C)  Sinus tachycardia 
D)  Sinus bradycardia 
A)  Sinus rhythm with PACs 
B)  Normal sinus rhythm 
C)  Sinus tachycardia 
D)  Sinus bradycardia

Question 17

Interpret the following rhythm:

Accepted Answer

A)  Normal sinus rhythm 
B)  Sinus bradycardia 
C)  Sinus tachycardia 
D)  Sinus arrhythmia 
A)  Normal sinus rhythm 
B)  Sinus bradycardia 
C)  Sinus tachycardia 
D)  Sinus arrhythmia

Question 18

The nurse is caring for a patient who is on a cardiac monitor.The nurse realizes that the sinus node is the pacemaker of the heart because it is:

Accepted Answer

A)  the fastest pacemaker cell in the heart. 
B)  the only pacemaker cell in the heart. 
C)  the only cell that does not affect the cardiac cycle. 
D)  located in the left side of the heart. 
A)  the fastest pacemaker cell in the heart. 
B)  the only pacemaker cell in the heart. 
C)  the only cell that does not affect the cardiac cycle. 
D)  located in the left side of the heart.

Question 19

Interpret the following rhythm:

Accepted Answer

A)  First-degree AV block 
B)  Second-degree AV block Mobitz I (Wenckebach phenomenon) 
C)  Second-degree AV block Mobitz II 
D)  Third-degree AV block (complete heart block) 
A)  First-degree AV block 
B)  Second-degree AV block Mobitz I (Wenckebach phenomenon) 
C)  Second-degree AV block Mobitz II 
D)  Third-degree AV block (complete heart block)

Interpret the following rhythm:

The QT interval is the total time taken for ventricular depolarization and repolarization.Prolongation of the QT interval:

Which of the following are common causes of sinus tachycardia? (Select all that apply.)

The nurse is examining the patient's cardiac rhythm strip in lead II and notices that all of the P waves are upright and look the same except one that has a different shape and is inverted.The nurse realizes that the P wave with the abnormal shape is probably:

Interpret the following rhythm:

The normal width of the QRS complex is which of the following? (Select all that apply.)

The normal rate for the SA node when the patient is at rest is:

The patient is scheduled to have a permanent pacemaker implanted.The patient asks the nurse,"How long will the battery in this thing last?" The nurse should answer,

Interpret the following rhythm:

The nurse notices that the patient has a first-degree AV block.Everything else about the rhythm is normal.The nurse should:

Because of the location of the AV node,the possible P waveforms that are associated with junctional rhythms include which of the following? (Select all that apply.)

Interpret the following rhythm:

Which of the following is true about a patient diagnosed with sinus arrhythmia?

The nurse is caring for a patient who has atrial fibrillation.Sequelae that place the patient at greater risk for mortality/morbidity include which of the following? (Select all that apply.)

Interpret the following rhythm:

Interpret the following rhythm:

The nurse is caring for a patient who is on a cardiac monitor.The nurse realizes that the sinus node is the pacemaker of the heart because it is:

Interpret the following rhythm:

Overview of Critical Care Nursing

Patient and Family Response to the Critical Care Experience

Ethical and Legal Issues in Critical Care Nursing

End-Of-Life Care in the Critical Care Unit

Comfort and Sedation

Nutritional Support

Hemodynamic Monitoring

Ventilatory Assistance

Rapid Response Teams and Code Management

Shock, sepsis, and Multiple Organ Dysfunction Syndrome

Cardiovascular Alterations

Nervous System Alterations

Acute Respiratory Failure

Acute Kidney Injury

Hematological and Immune Disorders

Gastrointestinal Alterations

Endocrine Alterations

Trauma and Surgical Management

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Exam 7: Dysrhythmia Interpretation and Management

Interpret the following rhythm:

The QT interval is the total time taken for ventricular depolarization and repolarization.Prolongation of the QT interval:

Which of the following are common causes of sinus tachycardia? (Select all that apply.)

The nurse is examining the patient's cardiac rhythm strip in lead II and notices that all of the P waves are upright and look the same except one that has a different shape and is inverted.The nurse realizes that the P wave with the abnormal shape is probably:

Interpret the following rhythm:

The normal width of the QRS complex is which of the following? (Select all that apply.)

The normal rate for the SA node when the patient is at rest is:

The patient is scheduled to have a permanent pacemaker implanted.The patient asks the nurse,"How long will the battery in this thing last?" The nurse should answer,

Interpret the following rhythm:

The nurse notices that the patient has a first-degree AV block.Everything else about the rhythm is normal.The nurse should:

Because of the location of the AV node,the possible P waveforms that are associated with junctional rhythms include which of the following? (Select all that apply.)

Interpret the following rhythm:

Which of the following is true about a patient diagnosed with sinus arrhythmia?

The nurse is caring for a patient who has atrial fibrillation.Sequelae that place the patient at greater risk for mortality/morbidity include which of the following? (Select all that apply.)

Interpret the following rhythm:

Interpret the following rhythm:

The nurse is caring for a patient who is on a cardiac monitor.The nurse realizes that the sinus node is the pacemaker of the heart because it is:

Interpret the following rhythm:

Overview of Critical Care Nursing

Patient and Family Response to the Critical Care Experience

Ethical and Legal Issues in Critical Care Nursing

End-Of-Life Care in the Critical Care Unit

Comfort and Sedation

Nutritional Support

Hemodynamic Monitoring

Ventilatory Assistance

Rapid Response Teams and Code Management

Shock, sepsis, and Multiple Organ Dysfunction Syndrome

Cardiovascular Alterations

Nervous System Alterations

Acute Respiratory Failure

Acute Kidney Injury

Hematological and Immune Disorders

Gastrointestinal Alterations

Endocrine Alterations

Trauma and Surgical Management

Burns

Solid Organ Transplantation

Filters