CVT 105 FINAL EXAM (1-3) QUESTIONS AND ANSWERS
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). - CORRECT
ANSWER✅✅Sympathetic, Parasympathetic
Sinus arrhythmia is a dysrhythmia originating in the AV Node and occurs when the AV Node discharges
irregularly. [T or F] - CORRECT ANSWER✅✅False
Beta 2 receptors affect the heart and Beat 2 Receptors affect the lungs. [T or F] - CORRECT
ANSWER✅✅True
What are some signs and symptoms of decreased CO.
-Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
-Chest Tightness
-Fatigue
-Fever - CORRECT ANSWER✅✅-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 - CORRECT ANSWER✅✅-Normal CO
-5.6 L/min
Properties of Cardiac Cells:
-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 -
CORRECT ANSWER✅✅-Contractility
-Automaticity
-Excitability
-Conductivity
Explain the Chronotropic, Inotropic, and dromotropic effects as they pertain to the heart. - CORRECT
ANSWER✅✅-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? - CORRECT ANSWER✅✅The cause of contraction by a shift in electrical charges
in pacemaker cells
List in order the 5 steps used in ECG rhythm analysis - CORRECT ANSWER✅✅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] - CORRECT ANSWER✅✅False
What is the isoelectric line of an EKG defined as? - CORRECT ANSWER✅✅It is defined as the baseline of
the EKG
What is the order of electrical impulses as it travels around the heart?
1.
2.
3.
4.
5.
6. - CORRECT ANSWER✅✅1. SA Node
2. Internodal Pathways
3. AV Node
4. Bundle of HIS
5. L & R Bundle Branches
6. Purkinje Fiber Network
The [____] is the largest vein that drains the heart. It lies in the groove, also known as the [____], that
separates the atria's from the ventricles. - CORRECT ANSWER✅✅Coronary Sinus, Coronary Sulcus
Occlusion of the Circumflex artery has been referred to as the "widowmaker" because of its association
with sudden cardiac arrest when it is blocked. [T or F] - CORRECT ANSWER✅✅False, LAD.
What areas make up the anterior surface of the heart? - CORRECT ANSWER✅✅RV, RA, LV
Which valves separate the atria from the ventricles? - CORRECT ANSWER✅✅Tricuspid, Mitral
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). - CORRECT
ANSWER✅✅Sympathetic, Parasympathetic
Sinus arrhythmia is a dysrhythmia originating in the AV Node and occurs when the AV Node discharges
irregularly. [T or F] - CORRECT ANSWER✅✅False
Beta 2 receptors affect the heart and Beat 2 Receptors affect the lungs. [T or F] - CORRECT
ANSWER✅✅True
What are some signs and symptoms of decreased CO.
-Acute Drop in BP
-Acute Changes in Mental Status
-Dysrhythmias
-Dyspnea
-Chest Tightness
-Fatigue
-Fever - CORRECT ANSWER✅✅-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 - CORRECT ANSWER✅✅-Normal CO
-5.6 L/min
Properties of Cardiac Cells:
-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 -
CORRECT ANSWER✅✅-Contractility
-Automaticity
-Excitability
-Conductivity
Explain the Chronotropic, Inotropic, and dromotropic effects as they pertain to the heart. - CORRECT
ANSWER✅✅-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? - CORRECT ANSWER✅✅The cause of contraction by a shift in electrical charges
in pacemaker cells
List in order the 5 steps used in ECG rhythm analysis - CORRECT ANSWER✅✅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] - CORRECT ANSWER✅✅False
What is the isoelectric line of an EKG defined as? - CORRECT ANSWER✅✅It is defined as the baseline of
the EKG
What is the order of electrical impulses as it travels around the heart?
1.
2.
3.
4.
5.
6. - CORRECT ANSWER✅✅1. SA Node
2. Internodal Pathways
3. AV Node
4. Bundle of HIS
5. L & R Bundle Branches
6. Purkinje Fiber Network
The [____] is the largest vein that drains the heart. It lies in the groove, also known as the [____], that
separates the atria's from the ventricles. - CORRECT ANSWER✅✅Coronary Sinus, Coronary Sulcus
Occlusion of the Circumflex artery has been referred to as the "widowmaker" because of its association
with sudden cardiac arrest when it is blocked. [T or F] - CORRECT ANSWER✅✅False, LAD.
What areas make up the anterior surface of the heart? - CORRECT ANSWER✅✅RV, RA, LV
Which valves separate the atria from the ventricles? - CORRECT ANSWER✅✅Tricuspid, Mitral
