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Quiz - Cardiology #1 (Practice Quiz)
Questions in this quiz (64)
1According to current estimates, how many Americans have some form of cardiovascular disease (CVD)?
- A>80 million
- B>20 million
- C>40 million
- D>60 million
2Which of the following factors that contributes to cardiovascular disease (CVD) is not the result of lifestyle choices?
- AObesity
- BFamily genetics
- CType A personality
- DSmoking
3What form of cardiovascular disease (CVD) is the single largest killer of Americans each year?
- APeripheral vascular disease
- BCerebral vessel disease
- CCoronary artery disease (CAD)
- DRenal artery disease
4Long QT syndrome , also called prolonged QT syndrome, is a group of disorders that increases the risk for sudden death from an arrhythmia slightly more common in:
- Awomen
- Bchronic drug abusers.
- Cmen
- Dthe elderly.
5The two superior chambers of the heart are the _____ and they _____.
- Aventricles, pump to the atria
- Batria, pump blood to the ventricles
- Cventricles, receive blood from throughout the body
- Datria, pump throughout the bodies
6The vascular system and the tissues are able to exchange gases, fluids, and nutrients through the very thin:
- Acapillary walls.
- Bvenules
- Calveoli
- Darterioles
7Intraventricular pressures are higher on the left than on the right because:
- Athe systemic circulation offers less resistance to blood flow than the lungs
- Bthe right ventricle is a larger muscle mass than the left ventricle.
- Cit is harder to pump blood through the aortic valve.
- Dthe lungs offer less resistance to blood flow than the systemic circulation.
8The first sound auscultated (S1) when listening to heart sounds occurs during which of the following events?
- AVentricular diastole
- BOpening of the atrioventricular (AV) valves
- CVentricular systole
- DClosing of the semilunar valves
9The three types of electrocardiogram (ECG) leads are bipolar, augmented, and:
- Aimplanted.
- Bcentral.
- Ctripolar
- Dprecordial
10Which of the following is a cause for artifact appearing on the electrocardiogram (ECG)?
- AA patient placed supine
- BLoose electrodes/wires
- CChamber enlargement
- DQuivering of the ventricles
11The most common electrocardiogram (ECG) leads used for monitoring are:
- AaVF or v1.
- Blead I or lead III.
- Clead II or the modified chest lead 1 (MCL1).
- DaVL and lead I.
12When an impulse is traveling away from a positive electrode, this will appear as a wave on the electrocardiogram (ECG) tracing in which direction?
- ANull
- BIsoelectric
- CUpward
- DDownward
13When looking at an electrocardiogram (ECG), the P wave is representative of what?
- ASinus node discharge
- BVentricular depolarization
- CConduction through the atrioventricular (AV) node
- DAtrial depolarization
14The total duration of ventricular depolarization is known as the:
- APR interval.
- BQT interval.
- CQRS interval.
- Dcorrected QT interval.
15While it can be present in cases of hypokalemia, this wave can also be a normal and nonpathological electrocardiogram (ECG) characteristic.
- AAbsent P wave
- BLong P-R interval
- CPeaked T wave
- DU wave
16When looking to determine the particular amplitude of an electrocardiogram (ECG) waveform, the paramedic should evaluate what aspect of the printed ECG strip?
- ALength of the waveform
- BAmplitude cannot be determined by evaluating the waveform
- CMorphology of the waveform
- DHeight of the waveform
17If a patient has a PR interval that is 7 mm (7 small boxes) in duration, what can be said about the overall electrocardiogram (ECG)?
- AThere is heightened conductivity between the atria and ventricles.
- BThe Purkinje fibers are not conducting properly.
- CThe SA node is failing to discharge.
- DThere is a conduction delay in the atrioventricular (AV) node.
18A phasic variation of the R-R interval that is related to the respiratory cycle and changes in intrathoracic pressure produces which of the following rhythms on the electrocardiogram (ECG)?
- ASinus bradycardia
- BSinus arrhythmia
- CSinus block
- DSinus arrest
19When a patient experiences a sudden increase in cholinergic tone or has intrinsic SA node disease, this may lead to the development of which of the following ECG rhythms?
- ASupraventricular tachycardia
- BAtrial fibrillation
- CSinus bradycardia
- DWandering atrial pacemaker (WAP)
20The electrocardiogram (ECG) rhythm you see is a regular, narrow-complex rhythm that has 1 upright P wave for every QRS complex; QRS complexes measure 0.08 seconds, and the PR interval is 0.16 seconds; heart rate is 140 beats/minute. Which of the following best labels this rhythm?
- AVentricular tachycardia
- BNormal sinus rhythm
- CJunctional tachycardia
- DSinus tachycardia
21What mechanism of abnormal impulse formation is responsible for sustaining rapid rhythms such as paroxysmal supraventricular tachycardia?
- AExcitability
- BEctopic
- CAutomaticity
- DReentry
22When evaluating an electrocardiogram (ECG), you note that in lead III the QRS complex duration is 0.16 seconds. What does this finding imply?
- ADelayed conduction through the atrioventricular (AV) node and bundle branches
- BNormality
- CDelayed conduction through the ventricular conduction system
- DEnhanced conduction from the SA node to the Purkinje fibers
23You are looking at an electrocardiogram (ECG) that displays normal P waves at 80/min with a 1:1 relationship with the QRS, a PRI with a 0.24 second conduction, and the width of the QRS is 0.14 seconds. The T wave is positively deflected. What is the most likely name of this rhythm?
- ANormal sinus rhythm
- BSinus rhythm with a Mobitz I heart block
- CNormal sinus rhythm with evidence of myocardial ischemia
- DSinus rhythm with a first-degree atrioventricular (AV) block and a bundle branch block
24You are managing a patient who has a supraventricular tachycardia (SVT) rhythm at a rate of 260/min. Which of the following best describes the rhythm's effect on the patient's hemodynamic status?
- AIt results in peripheral vasodilation.
- BThere will be an increase in coronary artery perfusion.
- CThe rapid rate will result in myocardial infarction.
- DThis results in decreased cardiac output.
25How many people in the United States are estimated to have hypertension?
- A50 million
- B500 million
- C150 million
- D5 million
26What form of cardiovascular disease is the single largest killer of Americans each year?
- ARenal artery disease
- BCoronary artery disease
- CPeripheral vascular disease
- DCerebral vessel disease
27Which of the following factors that contributes to CVD is not the result of lifestyle choices?
- AObesity
- BFamily genetics
- CSmoking
- DType A personality
28Which of the following is NOT thought to, or proven to, increase the risk of cardiovascular disease?
- AOral contraceptives
- BObesity
- CType A personality
- DHypocholesterolemia
29Which of the following risk factors are thought to increase the risk of cardiovascular disease?
- AOlder age
- BMale gender
- CSmoking
- DPoor diet
30Which of the following is a modifiable risk factor for developing cardiovascular disease?
- AHypertension
- BMale gender
- CFamily history
- DOlder age
31Which one of the following patients is most susceptible to developing cardiovascular disease?
- AA 64-year-old male, three-pack-per-day smoker
- BA 29-year-old female recreational smoker
- CA 19-year-old male with type A personality
- DA 40-year-old female taking oral contraceptives
32Which of the following patients is least likely to develop cardiovascular disease, compared to the others?
- A44-year-old male smoker and cocaine abuser
- B50-year-old male with chronic hypertension
- C38-year-old obese female with type 1 diabetes
- D25-year-old female taking birth control pills
33The two superior chambers of the heart are the ____________________and they ___________.
- Aatria, pump blood to the ventricles
- Batria, pump throughout the bodies
- Cventricles, receive blood from throughout the body
- Dventricles, pump to the atria
34The two major components of the cardiovascular system are the:
- Aheart and blood.
- Bheart and peripheral blood vessels.
- Cheart and lungs.
- Dcentral and peripheral blood vessels.
35The vascular system and the tissues are able to exchange gases, fluids, and nutrients through the very thin:
- Aalveoli
- Barterioles
- Cvenules
- Dcapillary walls.
36Intracardiac pressures are higher on the left than on the right because
- Ait is harder to pump blood through the aortic valve.
- Bthe lungs offer less resistance to blood flow than the systemic circulation.
- Cthe systemic circulation offers less resistance to blood flow than the lungs.
- Dthe right ventricle is a larger muscle mass than the left ventricle.
37The first sound auscultated (S Subscript 1) when listening to heart sounds occurs during which of the following events?
- AVentricular systole
- BAtrial systole
- CIncreased atrial contraction
- DVentricular diastole
38The three types of ECG leads are bipolar, augmented, and
- Atripolar
- Bcentral
- Cimplanted
- Dprecordial
39Which of the following is a cause for artifact appearing on the ECG?
- AA patient placed supine
- BLoose electrodes/wires
- CQuivering of the ventricles
- DChamber enlargement
40The most common ECG leads used for monitoring are:
- Alead I or lead III.
- BaVL and lead I.
- Clead II or the modified chest lead 1 (MCL1).
- DaVF or v1.
41According to Einthoven's triangle, lead I is characterized by:
- Aleft arm positive, right arm negative.
- Bright arm positive, left arm negative.
- Cleft leg positive, left arm negative.
- DLeft leg positive, right arm negative.
42When an impulse is traveling toward a negative electrode, this will appear as a(n) _________ deflection on the ECG.
- Aupward
- Bdownward
- Cpositive
- Disoelectric
43From the ECG graph, 1 small box =
- A1.0 sec.
- B0.04 sec.
- C0.20 sec.
- D0.01 sec.
44When looking at an ECG, the P wave is representative of what?
- AVentricular depolarization
- BConduction through the AV node
- CAtrial depolarization
- DSinus node discharge
45The total duration of ventricular depolarization is known as the:
- AQRS interval.
- Bcorrected QT interval.
- CQT interval.
- DPR interval.
46While it can be present in cases of hypokalemia, this wave can also be a normal and non-pathological ECG characteristic:
- AAbsent P wave
- BLong P-R interval
- CU wave
- DPeaked T wave
47When looking to determine the particular amplitude of an ECG waveform, the paramedic should evaluate what aspect of the printed ECG strip?
- AMorphology of the waveform
- BLength of the waveform
- CAmplitude cannot be determined by evaluating the waveform
- DHeight of the waveform
48Which of the following ECG lines is disturbed by myocardial infarction?
- AQRS interval
- BQT interval
- CST segment
- DPR interval
49If a patient has a PR interval that is 7 mm (7 small boxes) in duration, what can be said about the overall ECG?
- AThe SA node is failing to discharge.
- BThere is a conduction delay in the AV node.
- CThe Purkinje fibers are not conducting properly.
- DThere is heightened conductivity between the atria and ventricles.
50A phasic variation of the R-R interval that is related to the respiratory cycle and changes in intrathoracic pressure produces which of the following rhythms on the ECG?
- ASinus arrest
- BSinus block
- CSinus bradycardia
- DSinus arrhythmia
51The ECG monitor shows the following: no rate, no rhythm, P waves that are regular in spacing, no QRS complexes. What would you call this rhythm?
- ACardiac standstill
- BVentricular fibrillation
- CIdioventricular rhythm
- DArtificial pacemaker
52If the patient is displaying a normal sinus rhythm in lead II, which of the following statements would be true?
- AThe P to T wave interval should be >30 small boxes.
- BThe QRS width should be 4 mm.
- CThe R-R duration should be regular.
- DThe T wave should be negatively deflected.
53A tracing that you see on the ECG monitor has no discernible P waves, QRS width of 0.08 seconds, a ventricular rate between 64 and 82, and has an irregular rhythm to it. What would you call this rhythm?
- AVentricular fibrillation
- BAtrial fibrillation
- CVentricular tachycardia
- DAtrial flutter
54When a patient experiences a sudden increase in cholinergic tone or has intrinsic SA node disease, this may lead to the development of which of the following ECG rhythms?
- AWandering atrial pacemaker
- BSinus bradycardia
- CAtrial fibrillation
- DSupraventricular tachycardia
55The ECG rhythm you see is a regular, narrow-complex rhythm that has 1 upright P wave for every QRS complex; QRS complexes measure 0.08 seconds, and the PR interval is 0.16 seconds; heart rate is 140 beats/minute. Which of the following best labels this rhythm?
- AJunctional tachycardia
- BSinus tachycardia
- CNormal sinus rhythm
- DVentricular tachycardia
56What is the best explanation of an ECG tracing that shows progressive changes in the morphology of the P wave from beat to beat in at least 3 consecutive beats?
- ARapid reentry into an atrial circuit and the AV node that is associated with organic heart disease
- BMultiple areas of reentry within the atria or multiple ectopic foci bombarding the AV node
- CPassive transfer of pacemaker sites from the sinus node to other latent pacemaker sites in the atria and AV junction
- DA single electrical impulse originating in the atria outside the SA node, causing premature depolarization
57What mechanism of abnormal impulse formation is responsible for sustaining rapid rhythms such as paroxysmal supraventricular tachycardia?
- AExcitability
- BReentry
- CEctopic
- DAutomaticity
58When evaluating an ECG, you note that in lead III the QRS complex duration is 0.16 seconds. What does this finding imply?
- AEnhanced conduction from the SA node to the Purkinje fibers
- BDelayed conduction through the AV node and bundle branches
- CNormality
- DDelayed conduction through the ventricular conduction system
59Looking at an ECG strip, you count 14 QRS complexes in two 3-second marks. Your estimate for the heart rate would be:
- A84
- B70
- C140
- D42
60Which of the following is likely to result in bradycardia?
- ASepsis
- BIncreased sympathetic tone
- CNormal finding in healthy, well-conditioned persons
- DParasympatholytic drugs
61Which of the following is TRUE regarding ventricular tachycardia?
- AVentricular tachycardia cannot ever produce a palpable carotid pulse.
- BVentricular tachycardia is caused when the atria fire before the ventricles.
- CVentricular tachycardia can be triggered by a PVC firing in the relative refractory period.
- DVentricular tachycardia always has a rate that is higher than 150 beats/minute.
62You are looking at an ECG that displays normal P waves at 80/min with a 1:1 relationship with the QRS, a PRI with a 0.24 second conduction, and the width of the QRS is 0.14 seconds. The T wave is positively deflected. What is the most likely name of this rhythm?
- ANormal sinus rhythm with evidence of myocardial ischemia
- BSinus rhythm with a first-degree AV block and a bundle branch block
- CNormal sinus rhythm
- DSinus rhythm with a Mobitz I heart block
63You are managing a patient that has an SVT rhythm at a rate of 260/min. Which of the following best describes the rhythm's effect on the patient's hemodynamic status?
- AThis results in decreased cardiac output.
- BThe rapid rate will result in myocardial infarction.
- CIt results in peripheral vasodilation.
- DThere will be an increase in coronary artery perfusion.
64The ECG shows an irregular ventricular rhythm at a rate of 58; there are more P waves than QRS complexes; QRS width is 0.10 and the PR interval is constant for the conducted beats at a length of 0.20 seconds. What is this rhythm?
- AFirst degree AV block
- BSecond degree Type 2 AV block
- CSecond degree Type 1 block
- DThird degree AV block
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- paramedic Cardiology Quiz on Quiz - Cardiology #1 (Practice Quiz), created by Jake Anderson on 23/05/2023.
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