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WorksheetsEKG and Cardiac Output
Total questions: 32
Worksheet time: 16mins
What is the name of the segment between the end of the p wave and the start of the QRS complex?
TP segment
QT segment
ST segment
PR segment
Where is the SA node located?
Right atrium near the entry of the superior vena cava
Left atrium
Right ventricle
Top of the interventricular septum
What is the function of the AV node in an EKG?
To generate action potentials
To repolarize the atria
To repolarize the ventricles
To slow down the conduction of electrical activity
What does an upward deflection in an EKG indicate?
Positive charges moving towards the positive electrode
Negative charges moving towards the positive electrode
Positive charges moving away from the positive electrode
Negative charges moving away from the positive electrode
What is the name of the interval from the beginning of the p wave to the end of the PR segment?
QT interval
ST interval
TP interval
PR interval
What is the main vector of atrial depolarization in an EKG?
Upward and rightward towards the SA node
Downward and leftward towards the AV node
Downward and rightward towards the ventricles
Upward and leftward towards the atria
What is the function of the SA node in an EKG?
To slow down the conduction of electrical activity
To generate action potentials
To repolarize the atria
To repolarize the ventricles
What is the purpose of the AV node in an EKG?
To slow down the conduction of electrical activity
To repolarize the atria
To repolarize the ventricles
To generate action potentials
What does a sinus P wave indicate in an EKG?
Atrial depolarization generated by the SA node
Ventricular depolarization generated by the AV node
Atrial depolarization generated by the AV node
Ventricular depolarization generated by the SA node
What is the direction of positive charges in an EKG when they are flowing towards the positive electrode?
Upward deflection
Downward deflection
No electrical activity
Flat line
What is the function of the AV node in an EKG?
To repolarize the ventricles
To repolarize the atria
To generate action potentials
To slow down the conduction of electrical activity
What is an electrocardiogram?
An instrument used for recording an EKG.
The EKG paper that is used for recording an EKG.
The pen that is heat sensitive for tracing an EKG.
A recording or tracing of an EKG.
The QR complex occurs:
When the ventricles contract.
When the heart rest after a contraction.
When the atria contract.
When the heart begins to beat from the pacemaker.
What does the T wave show?
The contraction of the ventricles.
The contraction of the atria.
If the rhythm is normal.
The relaxation of the heart.
Where does a U wave usually appear?
Before the R wave
After the T wave
After the Q wave
During the T wave
When does a U wave occur?
There is no such things as a U wave.
When the patient moves during the tracing.
When a patient has a very low K+.
When the machine is running too slow.
The term electrocardiograph is:
The recording or tracing of the heart's activity.
The heat sensitive EKG paper.
The instrument used for recording the heart's activity.
The augmented leads.
What does the P wave show?
The heart getting ready to contract.
The relaxing of the heart after contraction.
The ventricular contraction.
The atrial contractions.
Which of the following represent the cardiac cycle?
QRS complex
P-R interval
PQRST complex
QRST complex
Which does not describe cardiac output?
It is determined by body size and aerobic fitness
The amount of blood pumped by the heart each minute
It is the amount of blood pumped out of the heart each beat
It is the product of heart rate and stroke volume
What is stroke volume?
the volume of oxygen transported in the blood
the volume of blood pumped out of the heart each minute
the volume of blood pumped out of the heart in each beat
the number of beats per minute
What conduction system fires an impulse in order for the atria to contract?
SA node
AV node
Bundle of his
Purkinje Fibers
Which of the following is applying the correct sequence of the heart’s electrical impulse?
AV node → ventricles → SA node → AV bundle - Purkinje fibers → Atria
SA node → ventricles → AV bundle - Purkinje fibers → AV node → Atria
AV node → ventricles → AV bundle - Purkinje fibers → SA node → Atria
SA node → Atria → AV node → AV bundle - Purkinje fibers → Ventricles
Normal blood pressure is...
120/80 mmHg and below
80/120 mmHg and below
140/90 mmHg and below
80/140 mmHg and below
The force of blood pushing against your arteries is...
Heart Rate
Temperature
Respiration Rate
Blood Pressure
Is the blood pressure in the picture normal?
Yes
No
What is the blood pressure in the picture?
118
118/78
78
78/70
70
Is the blood pressure in the picture normal?
Yes
No
Is the blood pressure in the picture normal?
Yes
No
T/F: Low cardiac output is healthy
True
False
Factor that increases cardiac output
Decrease blood volume
Exercise
Decreased Stroke Volume
High blood pressure
All the following increase heart rate except:
stress
dehydration
stimulants: caffeine, nicotine...
weight loss
