KAISER EKG EXAM NEWEST ACTUAL
EXAM 2025 PRACTICE QUESTIONS AND
DETAILED CORRECT ANSWERS |
ALREADY PASSED
_____ is the result when the heart's demand for oxygen
exceeds its supply from the coronary circulation.
Cardiac cycle
Myocardial ischemia
Tricuspid return
Venous return Correct Answer Myocardial ischemia
The pressure or resistance against which the ventricles
must pump to eject blood?
Afterload
Chronotropic
Inotropic
Venous return Correct Answer Afterload
Which of the following is primarily responsible for
parasympathetic stimulation of the heart?
Carotid arteries
Coronary sinus
Left ventricle
Vagus nerve Correct Answer Vagus nerve
During which phase does the cell repolarize and the
potassium channels close?
Phase 0
,Phase 1
Phase 2
Phase 3 Correct Answer Phase 3
What is the intrinsic rate of the SA node?
20 - 40 beats per minute
40 - 60 beats per minute
60 - 100 beats per minute
100 - 150 beats per minute Correct Answer 60 - 100 beats
per minute
Which of the following represents the normal pacemaker
of the heart?
The AV node at 40-60 beats per minute
The SA node at 60-100 beats per minute
The purkinje fibers at 60-100 beats per minute
The ventricles at 20-40 beats per minute Correct Answer
The SA node at 60-100 beats per minute
What is the normal cardiac output for an adult?
1 - 4 L/minute
2 - 3 L/minute
4 - 8 L/minute
4 - 10 L/minute Correct Answer 4 - 8 L/minute
What valve prevents backflow from the aorta into the left
ventricle?
Aortic valve
Mitral valve
Pulmonary valve
Tricuspid valve Correct Answer Aortic valve
, The upper chambers of the heart are called _____, and
the lower chambers of the heart are called _____.
Atria, Ventricles
Aortic, Pulmonic
Pulmonic, Aortic
Ventricles, Atria Correct Answer Atria, Ventricles
The heart is a cone-shaped, fist-sized organ positioned on
a tilt, with two-thirds of its mass to the
Left of center, base down
Right of center, base down
Left of center, base up
Right of center, base up Correct Answer Left of center,
base up
The posterior descending artery (PDA) and the acute
marginal branch form the ______ artery.
Left coronary
Left anterior descending
Posterior descending
Right coronary Correct Answer Right coronary
Which of the following statements is true regarding Phase
4?
It is the period before stimulation
The cell receives an impulse and is depolarized
It is a period of slow repolarization
The potassium ions leave the cell with their positive
charge Correct Answer It is the period before stimulation
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