CVT 2500 Exam 1 Questions and Correct Answers/ Latest Update / Already Graded

Page |1


CVT 2500 Exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
What is depolarization?

Ans: Excitation


What is repolarization?

Ans: Relaxation


What are 2 types of myocardial cells and which kind are capable of
initiating an impulse?

Ans: 1. Muscle cells 99%
2. Specialized cells 1%


- All myocardial cells are capable of initiating an impulse.


What is automaticity?

Ans: The ability to initiate an impulse


What is excitability?

Ans: The ability to respond to an impulse

All rights reserved © 2025/ 2026 |

, Page |2



What is conductivity?

Ans: The ability to conduct the impulse through myocardial
tissue


What is contractility?

Ans: The ability to respond with a pumping action


What is the large box on the vertical axis equal?

Ans: 5mm (.5 mV)


What is the small box on the vertical axis equal to?

Ans: 1mm (0.1 mV)


What is the large box on the horizontal axis equal to?

Ans: .20 sec


What is the small box on the horizontal axis equal to?

Ans: .04 sec



All rights reserved © 2025/ 2026 |

, Page |3

What is the standard paper speed?

Ans: 25mm/sec


What is the standard amplitude value?

Ans: 10 mm (1 mV)


To determine PR interval, what parts do you measure?

Ans: beginning of P wave to the beginning of Q wave


To determine QRS duration, what parts do you measure?

Ans: Start at Q wave than end of S wave


To determine ST segment duration, what parts do you measure?

Ans: Beginning of S wave to the end of T wave


To determine QT Interval duration, what parts do you measure?

Ans: Beginning of Q wave to the end of T wave


What is a normal range for PR interval?


All rights reserved © 2025/ 2026 |