KAISER EKG EXAM STUDY GUIDE
QUESTIONS WITH CORRECT
ANSWERS HIGHLY GRADED
Depolarization – answers Electrical excitation of cell membrane followed by mechanical
contraction
Repolarization - answers Return of cell membrane resting state
PR interval - answers .12-.20sec
PR interval is measured fro beginning of ____ to beginning to ____? - answers
Beginning of P wave to beginning of QRS wave
QRS complex - answers .06-.12sec
First negative deflection after P wave R wave? - answers Q wave
Negative deflection following R wave? - answers S wave
Marks QRS complex and ends ST segment? - answers J point
QT interval - answers .44-.48sec
No perceived electrical current? - answers Isoelectric line
Atrial depolorization? - answers P wave
Delay at AV junction? - answers PR segment
Ventricular depolorization? - answers QRS
Normally isoelectronic line between QRS and beginning of T-wave? - answers ST
Segment
ventricular repolarization? - answers T wave
What does T wave look like? - answers Larger than P wave and slightly asymmetric
beginning of ventricular activation through ventricular depolarization? - answers QT
interval
If U wave is seen what does that mean? - answers Hypokalemia or digitalis toxicity
,Each 1mm box equals how many sec? - answers 0.04sec
Each large box is how many sec? - answers 0.20sec
Lead I makes left arm ____ and right arm ____. Its angle of orientation is _____degrees
- answers Lead I makes left arm POSITIVE and right arm NEGATIVE. Its angle of
orientation is 0 degrees
Lead II is created making legs _______and the left arm is ______, the angle of
orientation is ____degrees? - answers Legs are POSITIVE and right arm NEGATIVE.
Angle of orientation is 60 degrees
Lead III is created making legs ______and left arm _____, angle is _____degrees? -
answers Legs is POSITIVE and left arm is NEGATIVE, angle is 120 degrees
Lead aVL created making left arm ______and other limbs _____, angle is -_____? -
answers Left arm is POSITIVE and other limbs is NEGATIVE, angle is -30 degrees
Lead aVR is created making right arm _____ and other limbs _____, its angle of
orientation is -____degrees - answers Right arm is POSITIVE and other limbs
NEGATIVE, angle of orientation is -150
Lead aVF is created making legs _____and other limbs ____, the angle of orientation is
____ degrees toward the feet - answers Legs POSITIVE and other limbs NEGATIVE,
angle of orientation is 90 degrees
V1 is placed ____-? - answers 4th intercostal space to the right of the sternum
V2 is placed? - answers 4th intercostal space, left sternal border
V3 is placed where? - answers Between V2 and V4
V4 is placed where? - answers Fifth intercostal space at the midclavicular line
V5 is placed where? - answers Between V4 and V6
V6 is placed where? - answers Fifth intercostal space, midaxillary line.
Treatment for bradycardia? - answers Atropine 0.5mg IV
Sinus pause includes what two things? - answers Sinus arrest and sinoatrial exit block
Sinus pause is one or two missed beats
Sinus arrest? - answers Failure of the SA node to create an impulse, an interruption of
R-R regularity
, When 3 or more beats aren't formed
Sinoatrial exit block? - answers SA node generates impulse but is blocked before being
transmitted through the atria (missed or dropped beats)
R-R regularity continues with beats that follow the missed beat
Which valves are classified as the atrioventricular valves?
Mitral and pulmonic
Mitral and tricuspid
Pulmonic and aortic
Tricuspid and aortic - answers Mitral and tricuspid
What allows the cardiac cells to transmit an electrical impulse?
Automaticity
Conductivity
Contractility
Excitability - answers Conductivity
Along with Lead II, what is Lead III most helpful for monitoring?
Anterior wall
Changes associated with inferior wall myocardial infarction
QRS complexes
Ventricular function - answers Changes associated with inferior wall myocardial
infarction
What interval measurement represents the complete refractory period?
P wave to T wave
P wave to ST segment
QRS wave to next P wave
QRS to peak of the T wave - answers QRS to peak of the T wave
What is the first step in preparation of the patient for ECG monitoring?
Do not prepare patient skin before applying leads
Reassure patient and maintain privacy
Turn on the monitor so the alarm sounds
Undress the patient and apply leads - answers Reassure patient and maintain privacy
Which of the following is an important electrolyte that affects cardiac function?
Chloride
Glucose
Phosphorus
Potassium - answers Potassium
When the parasympathetic nerve fibers are stimulated, what is released?
Acetylcholine
Adrenaline
QUESTIONS WITH CORRECT
ANSWERS HIGHLY GRADED
Depolarization – answers Electrical excitation of cell membrane followed by mechanical
contraction
Repolarization - answers Return of cell membrane resting state
PR interval - answers .12-.20sec
PR interval is measured fro beginning of ____ to beginning to ____? - answers
Beginning of P wave to beginning of QRS wave
QRS complex - answers .06-.12sec
First negative deflection after P wave R wave? - answers Q wave
Negative deflection following R wave? - answers S wave
Marks QRS complex and ends ST segment? - answers J point
QT interval - answers .44-.48sec
No perceived electrical current? - answers Isoelectric line
Atrial depolorization? - answers P wave
Delay at AV junction? - answers PR segment
Ventricular depolorization? - answers QRS
Normally isoelectronic line between QRS and beginning of T-wave? - answers ST
Segment
ventricular repolarization? - answers T wave
What does T wave look like? - answers Larger than P wave and slightly asymmetric
beginning of ventricular activation through ventricular depolarization? - answers QT
interval
If U wave is seen what does that mean? - answers Hypokalemia or digitalis toxicity
,Each 1mm box equals how many sec? - answers 0.04sec
Each large box is how many sec? - answers 0.20sec
Lead I makes left arm ____ and right arm ____. Its angle of orientation is _____degrees
- answers Lead I makes left arm POSITIVE and right arm NEGATIVE. Its angle of
orientation is 0 degrees
Lead II is created making legs _______and the left arm is ______, the angle of
orientation is ____degrees? - answers Legs are POSITIVE and right arm NEGATIVE.
Angle of orientation is 60 degrees
Lead III is created making legs ______and left arm _____, angle is _____degrees? -
answers Legs is POSITIVE and left arm is NEGATIVE, angle is 120 degrees
Lead aVL created making left arm ______and other limbs _____, angle is -_____? -
answers Left arm is POSITIVE and other limbs is NEGATIVE, angle is -30 degrees
Lead aVR is created making right arm _____ and other limbs _____, its angle of
orientation is -____degrees - answers Right arm is POSITIVE and other limbs
NEGATIVE, angle of orientation is -150
Lead aVF is created making legs _____and other limbs ____, the angle of orientation is
____ degrees toward the feet - answers Legs POSITIVE and other limbs NEGATIVE,
angle of orientation is 90 degrees
V1 is placed ____-? - answers 4th intercostal space to the right of the sternum
V2 is placed? - answers 4th intercostal space, left sternal border
V3 is placed where? - answers Between V2 and V4
V4 is placed where? - answers Fifth intercostal space at the midclavicular line
V5 is placed where? - answers Between V4 and V6
V6 is placed where? - answers Fifth intercostal space, midaxillary line.
Treatment for bradycardia? - answers Atropine 0.5mg IV
Sinus pause includes what two things? - answers Sinus arrest and sinoatrial exit block
Sinus pause is one or two missed beats
Sinus arrest? - answers Failure of the SA node to create an impulse, an interruption of
R-R regularity
, When 3 or more beats aren't formed
Sinoatrial exit block? - answers SA node generates impulse but is blocked before being
transmitted through the atria (missed or dropped beats)
R-R regularity continues with beats that follow the missed beat
Which valves are classified as the atrioventricular valves?
Mitral and pulmonic
Mitral and tricuspid
Pulmonic and aortic
Tricuspid and aortic - answers Mitral and tricuspid
What allows the cardiac cells to transmit an electrical impulse?
Automaticity
Conductivity
Contractility
Excitability - answers Conductivity
Along with Lead II, what is Lead III most helpful for monitoring?
Anterior wall
Changes associated with inferior wall myocardial infarction
QRS complexes
Ventricular function - answers Changes associated with inferior wall myocardial
infarction
What interval measurement represents the complete refractory period?
P wave to T wave
P wave to ST segment
QRS wave to next P wave
QRS to peak of the T wave - answers QRS to peak of the T wave
What is the first step in preparation of the patient for ECG monitoring?
Do not prepare patient skin before applying leads
Reassure patient and maintain privacy
Turn on the monitor so the alarm sounds
Undress the patient and apply leads - answers Reassure patient and maintain privacy
Which of the following is an important electrolyte that affects cardiac function?
Chloride
Glucose
Phosphorus
Potassium - answers Potassium
When the parasympathetic nerve fibers are stimulated, what is released?
Acetylcholine
Adrenaline
