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NSG 411 FINAL REVIEW - Exam 3 Questions with
Answers (100% Correct Answers)
The presence of a fireman's hat is an indicator of what type of cardiac
event? Answer: MI
"ST Segment Elevation"
What happens if the SA node is made nonfunctional due to a cardiac
event? Answer: The AV node takes over and controls conduction of the
heart
However, the AV node operates at a slower rate (40-60 bpm)
This causes QT interval to be prolonged
Each large box on an ECG represents how many seconds? Answer: 0.2
seconds
Each small box on an ECG represents how many seconds? Answer: 0.04
seconds
What patient preparation is required for a 12 lead ECG? Answer: 1. Clip
excessive hair on chest wall
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2. Rub skin with dry gauze
3. Use alcohol for oily skin
4. Apply electrical conductive gel
How do you manually determine heart rate using an ECG strip? Answer:
In a 6 second interval, count between R's and multiple by 10
Ex. if there are 8 R-R intervals, the heart rate is 80
What is an extra hump after the ST segment called and what does it
represent? Answer: U wave
Related to K+
Match the following dysrhythmias with their definition:
1. Sinus bradycardia
2. Sinus tachycardia
3. Premature atrial contraction
4. Paroxysmal Supraventricular Tachycardia
5. A-fib
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6. A flutter
7. Premature ventricular contraction
a) Early QRS complex with distinguishable P Waves
b) Bizarre, ultra wide QRS complexes
c) Normal, except low BPM
d) Narrow QRS complex and a BPM of >150
e) Tachycardia with no identifiable P waves - looks "coarse"
f) Normal, except high BPM
g) Tachycardia with sawtoothed P waves Answer: a) Early P wave and
QRS complex - Premature atrial contraction
b) Bizarre, ultra wide QRS complexes - Premature ventricular
contraction
c) Normal, except low BPM - Sinus bradycardia
d) Narrow QRS complex and a BPM of >150 - Paroxysmal
supraventricular tachycardia
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e) Tachycardia with no identifiable P waves - looks "coarse" - A-fib
f) Normal, except high BPM - Sinus tachycardia
g) Tachycardia with sawtoothed P waves - A-flutter
Match the following dysrhythmias with their definition:
1. V-Tach
2. V-Fib
3. Ventricular asystole
4. First Degree AV Block
5. Second Degree AV Block Type I
6. Second Degree AV Block Type II
7. Third Degree AV Block
a) Normal sinus rhythm but with a prolonged PR Interval
b) Repeated wide QRS complexes that have a regular pattern
© 2025 All rights reserved
NSG 411 FINAL REVIEW - Exam 3 Questions with
Answers (100% Correct Answers)
The presence of a fireman's hat is an indicator of what type of cardiac
event? Answer: MI
"ST Segment Elevation"
What happens if the SA node is made nonfunctional due to a cardiac
event? Answer: The AV node takes over and controls conduction of the
heart
However, the AV node operates at a slower rate (40-60 bpm)
This causes QT interval to be prolonged
Each large box on an ECG represents how many seconds? Answer: 0.2
seconds
Each small box on an ECG represents how many seconds? Answer: 0.04
seconds
What patient preparation is required for a 12 lead ECG? Answer: 1. Clip
excessive hair on chest wall
© 2025 All rights reserved
,2
2. Rub skin with dry gauze
3. Use alcohol for oily skin
4. Apply electrical conductive gel
How do you manually determine heart rate using an ECG strip? Answer:
In a 6 second interval, count between R's and multiple by 10
Ex. if there are 8 R-R intervals, the heart rate is 80
What is an extra hump after the ST segment called and what does it
represent? Answer: U wave
Related to K+
Match the following dysrhythmias with their definition:
1. Sinus bradycardia
2. Sinus tachycardia
3. Premature atrial contraction
4. Paroxysmal Supraventricular Tachycardia
5. A-fib
© 2025 All rights reserved
,3
6. A flutter
7. Premature ventricular contraction
a) Early QRS complex with distinguishable P Waves
b) Bizarre, ultra wide QRS complexes
c) Normal, except low BPM
d) Narrow QRS complex and a BPM of >150
e) Tachycardia with no identifiable P waves - looks "coarse"
f) Normal, except high BPM
g) Tachycardia with sawtoothed P waves Answer: a) Early P wave and
QRS complex - Premature atrial contraction
b) Bizarre, ultra wide QRS complexes - Premature ventricular
contraction
c) Normal, except low BPM - Sinus bradycardia
d) Narrow QRS complex and a BPM of >150 - Paroxysmal
supraventricular tachycardia
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, 4
e) Tachycardia with no identifiable P waves - looks "coarse" - A-fib
f) Normal, except high BPM - Sinus tachycardia
g) Tachycardia with sawtoothed P waves - A-flutter
Match the following dysrhythmias with their definition:
1. V-Tach
2. V-Fib
3. Ventricular asystole
4. First Degree AV Block
5. Second Degree AV Block Type I
6. Second Degree AV Block Type II
7. Third Degree AV Block
a) Normal sinus rhythm but with a prolonged PR Interval
b) Repeated wide QRS complexes that have a regular pattern
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