NCCT ECG Certification Review - Part 3 Rhythm (Rh)
From Official Review Book National Certified ECG Technician Part 3 Rhythm (RH)
- 1.The heart has two components: mechanical and
- A.
A. conductive
- B.
B. rhythmical
- C.
C. balanced
- D.
D. electrical
- 2.To fully evaluate a patient's cardiac function, you must assess
- A.
A. pulse
- B.
B. pressure
- C.
C. ECG
- D.
D. All answers are correct
- 3.Electrocardiography is the study of_________
- A.
A. arrhythmias
- B.
B. angina pectoralis
- C.
C. electrodes
- D.
D. myocardium
- 4.Repolarization represented by the ST segment and T waves occurs QRS depolarization in an individual complex.
- A.
A. before
- B.
B. after
- C.
C. during
- D.
D. None of the answers are correct
- 5.A test that creates high frequency sound vibrations that are sent into the heart through the chest wall is known as a(n) ______________
- A.
A. phonocardiogram
- B.
B. echocardiogram
- C.
C. electrocardiogram
- D.
D. angiograni
- 6.6. Three major areas of the conduction system are the Ventricle, SA node and the
- A.
A. AV node
- B.
B. QRS range
- C.
C. SA junction
- D.
D. terminal junction
- 7.7. To obtain the best results on an ECG reading you should_________
- A.
1. clean the skin area
- B.
2. abrade the skin slightly
- C.
3. disinfect the electrode
- D.
4. use a contact medium
- 8.. If electricity flows toward the negative electrode, a __________ pattern is produced on the graph.
- A.
A. downward/inverted
- B.
B. upright
- C.
C. bold
- D.
D. uneven
- 9.Time is measured by measuring the number of square blocks along the __________ of the graph paper.
- A.
A. side
- B.
B. y axis
- C.
C. x axis
- D.
D. No answer is correct
- 10.10. Voltage is measured by noting the height of a spike along the _________ of the graph paper.
- A.
A. vertical (y) axis
- B.
B. horizontal x) axis
- C.
C. bottom
- D.
D. None of the answers are correct
- 11.11. What is the standard rate at which an ECG machine runs paper past the stylus?
- A.
A. 15 mm/sec
- B.
B. 25mm/sec
- C.
C. 35 mm/sec
- D.
D. 45mm/sec
- 12.12. How long does it take to get from one bold line on ECU graph paper to the next bold line?
- A.
A. 0.1 seconds
- B.
B. 0.2 seconds
- C.
C. 0.3 seconds
- D.
D. 0.4 seconds
- 13.Consider the five small squares between the bold lines on ECG graph paper; how much time is needed to cross one small square?
- A.
A. 0.01 seconds
- B.
B. 0.03 seconds
- C.
C. 0.04 seconds
- D.
D. 0.05 seconds
- 14.14. How many prominent waves are in one complete cardiac cycle?
- A.
2
- B.
3
- C.
5
- D.
7
- 15.15. The distance between waves is referred to as
- A.
A. base spaces
- B.
B. intervals
- C.
C. segments
- D.
D. cycles
- 16.16. The line between the P wave and the next wave is called
- A.
A. AV node
- B.
B. PR segment
- C.
C. SA node
- D.
D. QRS complex
- 17.17. The P wave is indicative of_________
- A.
A. repolarization
- B.
B. atrial depolarization
- C.
C. ainal repolarization
- D.
D. depolarization
- 18.18. A line between waves is referred to as a
- A.
A. baseline
- B.
B. segment
- C.
C. interval
- D.
D. cycle
- 19.The refractory period occurs when the cells cannot respond to stimuli.
- A.
A. early
- B.
B. absolute
- C.
C. relative
- D.
D. correspondent
- 20.The refractory period occurs when some of the cells are able to respond.
- A.
Early
- B.
Absolute
- C.
Relative
- D.
Corresponding
- 21.21. Major categories of arrhythmias are __________
- A.
Sinus, junctional
- B.
Atrial, junctional, ventricular
- C.
Sinus, junctional, ventricular
- D.
Sinus, atrial, junctional, ventricular
- 22.22. In interpreting an arrhythmia, which of the following questions should one ask?
- A.
A. Are all the QRS complexes of equal duration?
- B.
B. Do all the P waves look alike?
- C.
C. Is the rhythm irregular?
- D.
D. All answers are possibilities
- 23.The quick way to calculate regular rhythm heart rates is to count the number of small squares between two consecutive R waves and divide into
- A.
A. 300
- B.
B. 900
- C.
C. 1500
- D.
D. None of the answers are correct
- 24.When electrical current moves through the heart from the right arm toward the left arm, a positive deflection is registered in lead
- A.
A. AVR
- B.
B. Lead II
- C.
C. AVL
- D.
D. VI
- 25.When the ECG selector switch is turned to lead II, a connection is made between the left leg and the
- A.
A. left arm
- B.
B. right arm
- C.
C. right leg
- D.
D. chest lead
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