NUR 170 (ECG/EKG - Dysrhythmias/Rhythms) Questions with
Correct Answers (Grade A+)
Question 1: What is a dysrhythmia?
Answer: Any cardiac rhythm that deviates from normal sinus rhythm
Question 2: What does the P wave do in Normal Sinus Rhythm?
Answer: Precedes each ORS complex (Atrial Depolarization)
Question 3: The QRS complex in Normal Sinus Rhythm indicates what?
Answer: Ventricular Depolarization
Question 4: The T wave in Normal Sinus Rhythm indicates what?
Answer: Ventricular Repolarization
Question 5: What would be the Heart Rate (HR) of a patient who's 6 second ECG strip showed 8 QRS
complexes?
Answer: 80 bpm 8 (QRS complexes) x 10 = 80 bpm
Question 6: What would be the Heart Rate (HR) of a patient who's 6 second ECG strip showed 5 QRS
complexes?
Answer: 50 bpm 5 (QRS complexes) x 10 = 50 bpm
Question 7: What patient preparations should be taken before placing ECG electrodes on a patient?
Answer: 1. Clip excessive hair on chest 2. Gently rub skin with dry gauze 3. Use alcohol for oily skin
patients 4. Apply electrode pads
Question 8: What is one example that could cause an Artifact to show up on an ECG monitoring?
Answer: The patient could be moving around
Question 9: What is the heart rate for Normal Sinus Rhythm?
Answer: 60 to 100 bpm
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, Question 10: For a patient to have a Normal Sinus Rhythm on an ECG strip the rhythm would include
what?
Answer: 1. HR of 60 to 100 bpm 2. Normal conduction pattern 3. Normal P wave that precedes QRS
complex 4. Normal QRS shape and duration 5. Normal PR interval
Question 11: SInus Bradycardia occurs when the Heart Rate is what?
Answer: Less than 60 beats/min
Question 12: Why does Sinus Bradycardia occur in patients?
Answer: 1. Response to parasympathetic nerve stimulation 2. Certain drugs 3. Certain diseases
Question 13: T/F: A patient that is a aerobically trained athlete or a patient sleeping could have Sinus
Bradycardia?
Answer: TRUE
Question 14: If a patient who is asymptomatic and is showing a Sinus Bradycardia dysrhythmia what
should you do?
Answer: Document and notify the doctor
Question 15: If a patient is showing symptoms associated with Sinus Bradycardia, what two drugs may
the doctor order?
Answer: 1. Atropine (IV) 2. Perri-arrest epinephrine (IV) 3. Call Rapid Response
Question 16: What are some symptoms of Sinus Bradycardia?
Answer: 1. Hypotension 2. Pale, cool skin 3. Weakness 4. Angina 5. Dizziness or syncope (passing out) 6.
Confusion or disorientation 7. Shortness of breath
Question 17: How is Sinus Bradycardia treated in patients?
Answer: 1. Stoping offending drugs 2. Atropine (IV) 3. Pacemaker 4. Dopamine or epinephrine infusions
Question 18: What does the drug Atropine do?
Answer: Increases the heart rate
Question 19: What causes Sinus Tachycardia in patients?
Answer: 1. Vagal inhibition 2. Sympathetic stimulation (treadmill) 3. Physiologic and psychologic stressors
4. Certain drugs that increase HR
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Correct Answers (Grade A+)
Question 1: What is a dysrhythmia?
Answer: Any cardiac rhythm that deviates from normal sinus rhythm
Question 2: What does the P wave do in Normal Sinus Rhythm?
Answer: Precedes each ORS complex (Atrial Depolarization)
Question 3: The QRS complex in Normal Sinus Rhythm indicates what?
Answer: Ventricular Depolarization
Question 4: The T wave in Normal Sinus Rhythm indicates what?
Answer: Ventricular Repolarization
Question 5: What would be the Heart Rate (HR) of a patient who's 6 second ECG strip showed 8 QRS
complexes?
Answer: 80 bpm 8 (QRS complexes) x 10 = 80 bpm
Question 6: What would be the Heart Rate (HR) of a patient who's 6 second ECG strip showed 5 QRS
complexes?
Answer: 50 bpm 5 (QRS complexes) x 10 = 50 bpm
Question 7: What patient preparations should be taken before placing ECG electrodes on a patient?
Answer: 1. Clip excessive hair on chest 2. Gently rub skin with dry gauze 3. Use alcohol for oily skin
patients 4. Apply electrode pads
Question 8: What is one example that could cause an Artifact to show up on an ECG monitoring?
Answer: The patient could be moving around
Question 9: What is the heart rate for Normal Sinus Rhythm?
Answer: 60 to 100 bpm
Page 1
, Question 10: For a patient to have a Normal Sinus Rhythm on an ECG strip the rhythm would include
what?
Answer: 1. HR of 60 to 100 bpm 2. Normal conduction pattern 3. Normal P wave that precedes QRS
complex 4. Normal QRS shape and duration 5. Normal PR interval
Question 11: SInus Bradycardia occurs when the Heart Rate is what?
Answer: Less than 60 beats/min
Question 12: Why does Sinus Bradycardia occur in patients?
Answer: 1. Response to parasympathetic nerve stimulation 2. Certain drugs 3. Certain diseases
Question 13: T/F: A patient that is a aerobically trained athlete or a patient sleeping could have Sinus
Bradycardia?
Answer: TRUE
Question 14: If a patient who is asymptomatic and is showing a Sinus Bradycardia dysrhythmia what
should you do?
Answer: Document and notify the doctor
Question 15: If a patient is showing symptoms associated with Sinus Bradycardia, what two drugs may
the doctor order?
Answer: 1. Atropine (IV) 2. Perri-arrest epinephrine (IV) 3. Call Rapid Response
Question 16: What are some symptoms of Sinus Bradycardia?
Answer: 1. Hypotension 2. Pale, cool skin 3. Weakness 4. Angina 5. Dizziness or syncope (passing out) 6.
Confusion or disorientation 7. Shortness of breath
Question 17: How is Sinus Bradycardia treated in patients?
Answer: 1. Stoping offending drugs 2. Atropine (IV) 3. Pacemaker 4. Dopamine or epinephrine infusions
Question 18: What does the drug Atropine do?
Answer: Increases the heart rate
Question 19: What causes Sinus Tachycardia in patients?
Answer: 1. Vagal inhibition 2. Sympathetic stimulation (treadmill) 3. Physiologic and psychologic stressors
4. Certain drugs that increase HR
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