NCCT ECG Certification Review - Part 3 Rhythm (Rh)

33 Questions | By Borderingvertigo | Last updated: Mar 21, 2022 | Total Attempts: 4895

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NCCT ECG Certification Review - Part 3 Rhythm (Rh) - Quiz

From Official Review Book National Certified ECG Technician Part 3 Rhythm (RH)

Questions and Answers

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