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CVT 105: FINAL EXAM (1-3) Questions and
Correct Answers/ Latest Update / Already
Graded
When it comes to the ANS, the [____] division prepares our body to
function under stress (flight or flight_ and the [____] division conserves
and restores body resources (rest and digest).
Ans: Sympathetic, Parasympathetic
Sinus arrhythmia is a dysrhythmia originating in the AV Node and
occurs when the AV Node discharges irregularly. [T or F]
Ans: False
Beta 2 receptors affect the heart and Beat 2 Receptors affect the lungs.
[T or F]
Ans: True
What are some signs and symptoms of decreased CO.
-Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
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-Chest Tightness
-Fatigue
-Fever
Ans: -Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
-Fatigue
A patient has a SV of 80 ml/beat and a HR of 70 bpm. What is his CO
and is considered normal, increased or decreased?
-Increased CO
-Decreased CO
-Normal CO
-5.6 ml/min
-5.6 L/beat
Ans: -Normal CO
-5.6 L/min
Properties of Cardiac Cells:
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-Ability of cardiac cell to shorten, causing contraction of the cardiac
muscle in response to electrical stimuli
-Ability of cardiac pacemaker cells to spontaneously initiate an
electrical impulse
-Ability of cardiac cells to respond to a stimulus
-Ability of a cardiac cell to receive an electrical stimulus & conduct that
impulse to an adjacent cell
Ans: -Contractility
-Automaticity
-Excitability
-Conductivity
Explain the Chronotropic, Inotropic, and dromotropic effects as they
pertain to the heart.
Ans: -Chronotropic: effects the heart rate, positive increases,
negative decreases
-Inotropic: Effects the contractility, positive increases, negative
decreases
-Dromotropic: Effects the conduction velocity, positive
increases, negative decreases
What is depolarization?
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Ans: The cause of contraction by a shift in electrical charges in
pacemaker cells
List in order the 5 steps used in ECG rhythm analysis
Ans: 1. Assess the rhythm, irregular or regular
2. Assess the rate
3. Identify & examine waveforms
4. Assess PR Interval, QRS Duration, interpret ST Segment
5. Interpret waveform and assess clinical significance
EKG deflections that record below the isoelectric line are positive
deflections. They demonstrate that most electrical depolarization is
occurring in the direction of that particular EKG Lead. Deflections
recorded above the isoelectric line are negative deflections. [T or F]
Ans: False
What is the isoelectric line of an EKG defined as?
Ans: It is defined as the baseline of the EKG
What is the order of electrical impulses as it travels around the heart?
1.
All rights reserved © 2025/ 2026 |
CVT 105: FINAL EXAM (1-3) Questions and
Correct Answers/ Latest Update / Already
Graded
When it comes to the ANS, the [____] division prepares our body to
function under stress (flight or flight_ and the [____] division conserves
and restores body resources (rest and digest).
Ans: Sympathetic, Parasympathetic
Sinus arrhythmia is a dysrhythmia originating in the AV Node and
occurs when the AV Node discharges irregularly. [T or F]
Ans: False
Beta 2 receptors affect the heart and Beat 2 Receptors affect the lungs.
[T or F]
Ans: True
What are some signs and symptoms of decreased CO.
-Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
All rights reserved © 2025/ 2026 |
, Page |2
-Chest Tightness
-Fatigue
-Fever
Ans: -Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
-Fatigue
A patient has a SV of 80 ml/beat and a HR of 70 bpm. What is his CO
and is considered normal, increased or decreased?
-Increased CO
-Decreased CO
-Normal CO
-5.6 ml/min
-5.6 L/beat
Ans: -Normal CO
-5.6 L/min
Properties of Cardiac Cells:
All rights reserved © 2025/ 2026 |
, Page |3
-Ability of cardiac cell to shorten, causing contraction of the cardiac
muscle in response to electrical stimuli
-Ability of cardiac pacemaker cells to spontaneously initiate an
electrical impulse
-Ability of cardiac cells to respond to a stimulus
-Ability of a cardiac cell to receive an electrical stimulus & conduct that
impulse to an adjacent cell
Ans: -Contractility
-Automaticity
-Excitability
-Conductivity
Explain the Chronotropic, Inotropic, and dromotropic effects as they
pertain to the heart.
Ans: -Chronotropic: effects the heart rate, positive increases,
negative decreases
-Inotropic: Effects the contractility, positive increases, negative
decreases
-Dromotropic: Effects the conduction velocity, positive
increases, negative decreases
What is depolarization?
All rights reserved © 2025/ 2026 |
, Page |4
Ans: The cause of contraction by a shift in electrical charges in
pacemaker cells
List in order the 5 steps used in ECG rhythm analysis
Ans: 1. Assess the rhythm, irregular or regular
2. Assess the rate
3. Identify & examine waveforms
4. Assess PR Interval, QRS Duration, interpret ST Segment
5. Interpret waveform and assess clinical significance
EKG deflections that record below the isoelectric line are positive
deflections. They demonstrate that most electrical depolarization is
occurring in the direction of that particular EKG Lead. Deflections
recorded above the isoelectric line are negative deflections. [T or F]
Ans: False
What is the isoelectric line of an EKG defined as?
Ans: It is defined as the baseline of the EKG
What is the order of electrical impulses as it travels around the heart?
1.
All rights reserved © 2025/ 2026 |
