CVT 2500 EXAM 1 QUESTIONS AND ANSWERS
What is depolarization? - CORRECT ANSWER✅✅Excitation
What is repolarization? - CORRECT ANSWER✅✅Relaxation
What are 2 types of myocardial cells and which kind are capable of initiating an impulse? - CORRECT
ANSWER✅✅1. Muscle cells 99%
2. Specialized cells 1%
- All myocardial cells are capable of initiating an impulse.
What is automaticity? - CORRECT ANSWER✅✅The ability to initiate an impulse
What is excitability? - CORRECT ANSWER✅✅The ability to respond to an impulse
What is conductivity? - CORRECT ANSWER✅✅The ability to conduct the impulse through myocardial
tissue
What is contractility? - CORRECT ANSWER✅✅The ability to respond with a pumping action
What is the large box on the vertical axis equal? - CORRECT ANSWER✅✅5mm (.5 mV)
What is the small box on the vertical axis equal to? - CORRECT ANSWER✅✅1mm (0.1 mV)
What is the large box on the horizontal axis equal to? - CORRECT ANSWER✅✅.20 sec
What is the small box on the horizontal axis equal to? - CORRECT ANSWER✅✅.04 sec
, What is the standard paper speed? - CORRECT ANSWER✅✅25mm/sec
What is the standard amplitude value? - CORRECT ANSWER✅✅10 mm (1 mV)
To determine PR interval, what parts do you measure? - CORRECT ANSWER✅✅beginning of P wave to
the beginning of Q wave
To determine QRS duration, what parts do you measure? - CORRECT ANSWER✅✅Start at Q wave than
end of S wave
To determine ST segment duration, what parts do you measure? - CORRECT ANSWER✅✅Beginning of S
wave to the end of T wave
To determine QT Interval duration, what parts do you measure? - CORRECT ANSWER✅✅Beginning of Q
wave to the end of T wave
What is a normal range for PR interval? - CORRECT ANSWER✅✅.12 - .20 seconds
What is a normal range for QRS complex? - CORRECT ANSWER✅✅.06 - .11 seconds
What is the normal range for QT interval? - CORRECT ANSWER✅✅.32 - .44 seconds
What does ST segment elevation look like? - CORRECT ANSWER✅✅Above isoelectric baseline
What does ST segment depression look like? - CORRECT ANSWER✅✅Below isoelectric baseline
what symbol is used to represent a small q wave? - CORRECT ANSWER✅✅lowercase q
What symbol is used to represent a large Q wave? - CORRECT ANSWER✅✅uppercase Q
What is depolarization? - CORRECT ANSWER✅✅Excitation
What is repolarization? - CORRECT ANSWER✅✅Relaxation
What are 2 types of myocardial cells and which kind are capable of initiating an impulse? - CORRECT
ANSWER✅✅1. Muscle cells 99%
2. Specialized cells 1%
- All myocardial cells are capable of initiating an impulse.
What is automaticity? - CORRECT ANSWER✅✅The ability to initiate an impulse
What is excitability? - CORRECT ANSWER✅✅The ability to respond to an impulse
What is conductivity? - CORRECT ANSWER✅✅The ability to conduct the impulse through myocardial
tissue
What is contractility? - CORRECT ANSWER✅✅The ability to respond with a pumping action
What is the large box on the vertical axis equal? - CORRECT ANSWER✅✅5mm (.5 mV)
What is the small box on the vertical axis equal to? - CORRECT ANSWER✅✅1mm (0.1 mV)
What is the large box on the horizontal axis equal to? - CORRECT ANSWER✅✅.20 sec
What is the small box on the horizontal axis equal to? - CORRECT ANSWER✅✅.04 sec
, What is the standard paper speed? - CORRECT ANSWER✅✅25mm/sec
What is the standard amplitude value? - CORRECT ANSWER✅✅10 mm (1 mV)
To determine PR interval, what parts do you measure? - CORRECT ANSWER✅✅beginning of P wave to
the beginning of Q wave
To determine QRS duration, what parts do you measure? - CORRECT ANSWER✅✅Start at Q wave than
end of S wave
To determine ST segment duration, what parts do you measure? - CORRECT ANSWER✅✅Beginning of S
wave to the end of T wave
To determine QT Interval duration, what parts do you measure? - CORRECT ANSWER✅✅Beginning of Q
wave to the end of T wave
What is a normal range for PR interval? - CORRECT ANSWER✅✅.12 - .20 seconds
What is a normal range for QRS complex? - CORRECT ANSWER✅✅.06 - .11 seconds
What is the normal range for QT interval? - CORRECT ANSWER✅✅.32 - .44 seconds
What does ST segment elevation look like? - CORRECT ANSWER✅✅Above isoelectric baseline
What does ST segment depression look like? - CORRECT ANSWER✅✅Below isoelectric baseline
what symbol is used to represent a small q wave? - CORRECT ANSWER✅✅lowercase q
What symbol is used to represent a large Q wave? - CORRECT ANSWER✅✅uppercase Q
