EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
Which of the following leads would help to record the electrical activity in the heart's horizontal plane?
-Bipolar lead
-12-lead ECG
-Precordial leads
-Unipolar leads - (ANSWER)Precordial leads
This provides a transverse view through the middle of the heart which divides it into upper and lower
portions.
Of the electrocardiogram waves, which would be considered the first deflection after the diastole that is
produced because of the atrial depolarization?
-T wave
-S wave
-Q wave
-P wave - (ANSWER)P wave
This occurs because of the atrial depolarization of the heart.
The Bundle of His has an intrinsic firing rate of which of the following?
-40 to 60 beats per minute
-30 to 60 beats per minute
-60 to 80 beats per minute
-80 to 100 beats per minute - (ANSWER)40-60 beats per minute
1
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
The Bundle of His is located at the superior portion of the interventricular septum. The Bundle of His is
actually the pathway of the electrical impulses that lead out of the SA node.
If a patient is experiencing a low blood pressure, which of the following terms would be correct?
-Hyper tension
-Hypoxemia
-Hypotension
-Hypoplastic - (ANSWER)Hypotension
Hypertension: high blood pressure
Hypoxemia: low oxygen concentration in the blood
Hypoplastic: when an organ is abnormally small because of a problem with development prior to birth
Hypotension: low blood pressure
The aVR lead picks up electrical activity from which of the following?
-The center of the heart to the right arm
-The center of the heart to the left leg
-The center of the heart to the left arm
-From the left arm to the left leg - (ANSWER)The center of the heart to the right arm
The center of the heart to the left leg: aVF
The center of the heart to the left arm: aVL
The center of the heart to the right arm: aVR
From the left arm to the left leg: lead III
2
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
The Q wave should have a duration of less than how many seconds?
-0.30 seconds
-0.20 seconds
-0.10 seconds
-0.04 seconds - (ANSWER)0.04 seconds
The Q wave should have a duration of less than 0.04 seconds. It is the first negative component of the
QRS complex and if it lengthens, it could be indicative of a myocardial infarction
When the mitral valve opens, the blood flows from the left atrium to which of the following?
-The right atrium
-The left ventricle
-The right ventricle
-The lungs - (ANSWER)The left ventricle
Which of the following age groups would be most likely to experience fibrosis in the conduction system?
-21-30 years of age
-Infants
-The elderly
-40-60 years of age - (ANSWER)The elderly
Fibrosis can occur at any age, but is most common with the elderly. They have a higher incidence of AV
block which can be caused by fibrosis in the conduction system
3
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
A dropped beat indicates what? (Skipped QRS wave)
____ degree heart block, type __ - (ANSWER)Second degree heart block, type I
With this rhythm, the PR interval will lengthen in each of the intervals until one QRS completely
disappears.
Which of the following characteristics would a good ECG technician have?
-They should be reliable
-They should have mechanical aptitude
-They should be able to follow directions
-All of the above - (ANSWER)All of the above
Which of the following would be the main purpose of the heart valves?
-The prevention of back-flow of blood
-They assure that there is a uni-directional flow of blood through the heart
-Both A and B
-None of the above - (ANSWER)Both A and B
Which of the following would be considered correct regarding the grid paper that is used for an ECG?
-The grid paper consist of horizontal lines
-The grid paper is not heat sensitive
-The grid paper consist of vertical lines
-Both A and C - (ANSWER)Both A and C
4
Which of the following leads would help to record the electrical activity in the heart's horizontal plane?
-Bipolar lead
-12-lead ECG
-Precordial leads
-Unipolar leads - (ANSWER)Precordial leads
This provides a transverse view through the middle of the heart which divides it into upper and lower
portions.
Of the electrocardiogram waves, which would be considered the first deflection after the diastole that is
produced because of the atrial depolarization?
-T wave
-S wave
-Q wave
-P wave - (ANSWER)P wave
This occurs because of the atrial depolarization of the heart.
The Bundle of His has an intrinsic firing rate of which of the following?
-40 to 60 beats per minute
-30 to 60 beats per minute
-60 to 80 beats per minute
-80 to 100 beats per minute - (ANSWER)40-60 beats per minute
1
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
The Bundle of His is located at the superior portion of the interventricular septum. The Bundle of His is
actually the pathway of the electrical impulses that lead out of the SA node.
If a patient is experiencing a low blood pressure, which of the following terms would be correct?
-Hyper tension
-Hypoxemia
-Hypotension
-Hypoplastic - (ANSWER)Hypotension
Hypertension: high blood pressure
Hypoxemia: low oxygen concentration in the blood
Hypoplastic: when an organ is abnormally small because of a problem with development prior to birth
Hypotension: low blood pressure
The aVR lead picks up electrical activity from which of the following?
-The center of the heart to the right arm
-The center of the heart to the left leg
-The center of the heart to the left arm
-From the left arm to the left leg - (ANSWER)The center of the heart to the right arm
The center of the heart to the left leg: aVF
The center of the heart to the left arm: aVL
The center of the heart to the right arm: aVR
From the left arm to the left leg: lead III
2
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
The Q wave should have a duration of less than how many seconds?
-0.30 seconds
-0.20 seconds
-0.10 seconds
-0.04 seconds - (ANSWER)0.04 seconds
The Q wave should have a duration of less than 0.04 seconds. It is the first negative component of the
QRS complex and if it lengthens, it could be indicative of a myocardial infarction
When the mitral valve opens, the blood flows from the left atrium to which of the following?
-The right atrium
-The left ventricle
-The right ventricle
-The lungs - (ANSWER)The left ventricle
Which of the following age groups would be most likely to experience fibrosis in the conduction system?
-21-30 years of age
-Infants
-The elderly
-40-60 years of age - (ANSWER)The elderly
Fibrosis can occur at any age, but is most common with the elderly. They have a higher incidence of AV
block which can be caused by fibrosis in the conduction system
3
, EDUC 313 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS.
A dropped beat indicates what? (Skipped QRS wave)
____ degree heart block, type __ - (ANSWER)Second degree heart block, type I
With this rhythm, the PR interval will lengthen in each of the intervals until one QRS completely
disappears.
Which of the following characteristics would a good ECG technician have?
-They should be reliable
-They should have mechanical aptitude
-They should be able to follow directions
-All of the above - (ANSWER)All of the above
Which of the following would be the main purpose of the heart valves?
-The prevention of back-flow of blood
-They assure that there is a uni-directional flow of blood through the heart
-Both A and B
-None of the above - (ANSWER)Both A and B
Which of the following would be considered correct regarding the grid paper that is used for an ECG?
-The grid paper consist of horizontal lines
-The grid paper is not heat sensitive
-The grid paper consist of vertical lines
-Both A and C - (ANSWER)Both A and C
4
