CCI CRAT Flash Cards
Heart Rate of Normal Sinus Rhythm (NSR) - ANS -60-100 BPM
Heart Rate of Sinus Tachycardia (ST) - ANS -101+ BPM
Heart Rate of Sinus Bradycardia (SB) - ANS -59 or less BPM
The horizontal axis on the grid paper records____________. - ANS -time.
How many large grid blocks on the EKG paper mark one second in time? - ANS -Five (5).
How long in seconds is one large block on the EKG paper? - ANS -0.2 seconds (thus, five large
blocks marks 1 second in time).
The vertical axis on the grid paper records _________________. - ANS -EKG Amplitude
(voltage).
How many millivolts (mV) is one small block on the EKG paper? - ANS -0.1 mV
How many millivolts (mV) is one large block on the EKG paper? - ANS -0.5 mV
10 mm equals how many millivolts (mV)? - ANS -1.0 mV
6 mm equals how many millivolts (mV)? - ANS -0.6 mV
3 mm equals how many millivolts (mV)? - ANS -0.3 mV
5 mm equals how many millivolts (mV)? - ANS -0.5 mV
What is the amplitude if a complex is 22 small boxes tall, vertically? - ANS -2.2 mV
What is the amplitude if a complex is 14 small boxes tall, vertically? - ANS -1.4 mV
What is the amplitude if a complex is 7 small boxes tall, vertically? - ANS -0.7 mV
How many seconds does one small box horizontally represent? - ANS -0.04 seconds (thus 5
small boxes horizontally, equals 0.20 seconds (one large box)).
What is the normal/typical speed of EKG paper? - ANS -25 mm/second
, Name the lettered components of a normal heartbeat found on an EKG? - ANS -P, Q, R, S, T, U
What is a P-wave and what does it represent in a heartbeat? - ANS -The first deflection.
Normally positive (upward) waveform.
Indicates atrial depolarization.
What follows a p-wave on an EKG tracing? - ANS -A QRS Complex.
What does a QRS complex represent? - ANS -Ventricular Depolarization
What is a t-wave and what does it represent in a heartbeat? - ANS -A "normally" modest
positive (upward) waveform.
Indicates ventricular repolarization.
What is a U-wave? - ANS -Follows the t-wave.
Represents recovery of the Purkinje fibers.
Important: May not be observable on an EKG tracing.
The "Zoll Way" to assist with Rhythm interpretation (REMEMBER TO HELP WITH
INTERPRETATION ON THE EXAM): - ANS -Rhythm
Rate
P Wave
PR Interval
QRS Interval
T Wave
How many chambers does the heart have? - ANS -Four (4).
The _________________ are the receiving chambers of the heart. - ANS -Atria (Singular:
Atrium)
The _______________ are the pumping chambers of the heart. - ANS -Ventricles (Singular:
Ventricle)
What separates the heart into left and right ventricles? - ANS -The Septum
On an EKG tracing, what represents atrial depolarization? - ANS -The P-wave
On an EKG tracing, what represents ventricular depolarization? - ANS -The QRS complex
Heart Rate of Normal Sinus Rhythm (NSR) - ANS -60-100 BPM
Heart Rate of Sinus Tachycardia (ST) - ANS -101+ BPM
Heart Rate of Sinus Bradycardia (SB) - ANS -59 or less BPM
The horizontal axis on the grid paper records____________. - ANS -time.
How many large grid blocks on the EKG paper mark one second in time? - ANS -Five (5).
How long in seconds is one large block on the EKG paper? - ANS -0.2 seconds (thus, five large
blocks marks 1 second in time).
The vertical axis on the grid paper records _________________. - ANS -EKG Amplitude
(voltage).
How many millivolts (mV) is one small block on the EKG paper? - ANS -0.1 mV
How many millivolts (mV) is one large block on the EKG paper? - ANS -0.5 mV
10 mm equals how many millivolts (mV)? - ANS -1.0 mV
6 mm equals how many millivolts (mV)? - ANS -0.6 mV
3 mm equals how many millivolts (mV)? - ANS -0.3 mV
5 mm equals how many millivolts (mV)? - ANS -0.5 mV
What is the amplitude if a complex is 22 small boxes tall, vertically? - ANS -2.2 mV
What is the amplitude if a complex is 14 small boxes tall, vertically? - ANS -1.4 mV
What is the amplitude if a complex is 7 small boxes tall, vertically? - ANS -0.7 mV
How many seconds does one small box horizontally represent? - ANS -0.04 seconds (thus 5
small boxes horizontally, equals 0.20 seconds (one large box)).
What is the normal/typical speed of EKG paper? - ANS -25 mm/second
, Name the lettered components of a normal heartbeat found on an EKG? - ANS -P, Q, R, S, T, U
What is a P-wave and what does it represent in a heartbeat? - ANS -The first deflection.
Normally positive (upward) waveform.
Indicates atrial depolarization.
What follows a p-wave on an EKG tracing? - ANS -A QRS Complex.
What does a QRS complex represent? - ANS -Ventricular Depolarization
What is a t-wave and what does it represent in a heartbeat? - ANS -A "normally" modest
positive (upward) waveform.
Indicates ventricular repolarization.
What is a U-wave? - ANS -Follows the t-wave.
Represents recovery of the Purkinje fibers.
Important: May not be observable on an EKG tracing.
The "Zoll Way" to assist with Rhythm interpretation (REMEMBER TO HELP WITH
INTERPRETATION ON THE EXAM): - ANS -Rhythm
Rate
P Wave
PR Interval
QRS Interval
T Wave
How many chambers does the heart have? - ANS -Four (4).
The _________________ are the receiving chambers of the heart. - ANS -Atria (Singular:
Atrium)
The _______________ are the pumping chambers of the heart. - ANS -Ventricles (Singular:
Ventricle)
What separates the heart into left and right ventricles? - ANS -The Septum
On an EKG tracing, what represents atrial depolarization? - ANS -The P-wave
On an EKG tracing, what represents ventricular depolarization? - ANS -The QRS complex
