JB Learning Cardiology Exam
JB Learning Cardiology Exam 1 / JB Learning
Cardiology Exam Preparation /JB Learning
Cardiology Practice Exam Newest 2025/2026
Complete 300 Questions And Correct Detailed
Answers (Verified Rationales)
Which of the following structures is the primary pacemaker, which sets the normal rate for
the heart?
A) Bundle of His
B) Purkinje fibers
C) Sinoatrial node
D) Atrioventricular node
- Correct Answer :C) Sinoatrial node
Cardiac pacemakers are bundles of nerves that generate electrical impulses and conduct
them to the cardiac cells, resulting in contraction of the myocardium (heart muscle). In a
normal healthy heart, the sinoatrial (SA) node is the primary pacemaker that sets the
inherent rate for the heart. The SA node generates electricity at a rate of 60 to 100 electrical
discharges per minute; hence the normal adult heart rate is 60 to 100 beats/min. The
atrioventricular (AV) node serves as the heart's secondary pacemaker; if the SA node fails,
the AV node resumes the pacing function of the heart, although at a slower rate (40 to 60
beats/min). The bundle of His and Purkinjie fibers, located within the ventricles, may serve as
tertiary pacemakers if the SA and AV nodes fail; their inherent pacing rate is 20 to 40
beats/min.
A+ TEST BANK 1
, JB Learning Cardiology Exam
When assessing a patient who complains of chest pain, which of the following questions
would you ask to assess the "R" in OPQRST?
A) Did the pain begin suddenly or gradually?
B) What were you doing when the pain began?
C) Is there anything that makes the pain worse?
D) Is the pain in one place or does it move around?
- Correct Answer :D) Is the pain in one place or does it move around?
A middle-aged man was found unresponsive by his wife. When you arrive at the scene, you
assess the patient and determine that he is apneic and pulseless. You should:
A) immediately begin CPR, reassess for a carotid pulse after 60 seconds, and then apply the
AED.
B) immediately apply the AED, analyze his cardiac rhythm, deliver a shock if indicated, and
begin CPR.
C) begin CPR starting with chest compressions, apply the AED as soon as possible, and
request backup.
D) perform CPR with a compression to ventilation ratio of 15:2, apply the AED, and request
backup.
- Correct Answer :C) begin CPR starting with chest compressions, apply the AED as soon as
possible, and request backup.
You are treating a 60-year-old man in cardiac arrest. After delivering a shock with the AED
and performing CPR for 2 minutes, you achieve return of spontaneous circulation. Your next
action should be to:
A) provide rapid transport to the hospital.
B) reanalyze his rhythm for confirmation.
C) assess his airway and ventilatory status.
A+ TEST BANK 2
, JB Learning Cardiology Exam
D) remove the AED and apply 100% oxygen.
- Correct Answer :C) assess his airway and ventilatory status.
If return of spontaneous circulation (ROSC) occurs (eg, a palpable pulse is restored), your
first action should be to reassess the patient's airway and ventilatory status. If the patient
remains apneic, continue rescue breathing at a rate of 10 breaths/min (one breath every 6
seconds). If the patient is breathing adequately, administer supplemental oxygen in a
concentration that is sufficient to maintain an oxygen saturation that is between 92% and
98%. After reassessing the airway and breathing, and treating the patient accordingly, you
should prepare for immediate transport. Because of the high risk that cardiac arrest can
recur following resuscitation, you should not remove the AED pads; simply turn the AED off
instead. Analysis of the patient's cardiac rhythm is not indicated because he now has a pulse.
In patients with heart disease, acute coronary syndrome is MOST often the result of:
A) atrial damage.
B) atherosclerosis.
C) coronary artery spasm.
D) coronary artery rupture. - Correct Answer :B) atherosclerosis.
After applying the AED to an adult patient in cardiac arrest, you analyze her cardiac rhythm
and receive a shock advised message. Emergency medical responders, who arrived at the
scene before you, tell you that bystander CPR was not in progress upon their arrival. You
should:
A) perform CPR for 2 minutes and then defibrillate.
B) detach the AED and prepare for immediate transport.
C) deliver the shock as indicated followed immediately by CPR.
D) notify medical control and request permission to cease resuscitation
. - Correct Answer :C) deliver the shock as indicated followed immediately by CPR.
A+ TEST BANK 3
, JB Learning Cardiology Exam
Aspirin may be contraindicated in patients with:
A) glaucoma.
B) diabetes.
C) stomach ulcers.
D) ibuprofen allergy.
- Correct Answer :C) stomach ulcers
Aspirin (acetylsalicylic acid [ASA]) inhibits platelet aggregation, thus preventing clots from
forming or preventing an existing clot from getting bigger. Aspirin, in a dose of 160 to 325
mg, should be administered to patients experiencing acute coronary syndrome (ie, unstable
angina, acute myocardial infarction) as soon as possible. Aspirin is absolutely
contraindicated for patients who are allergic to salicylates. Because aspirin prolongs
bleeding time, it may be contraindicated for patients with stomach ulcers; therefore, you
should contact medical control before giving aspirin to such patients. Aspirin is not
contraindicated for patients with glaucoma or diabetes. Ibuprofen, the active ingredient in
Motrin and Advil, is a nonsteroidal anti-inflammatory drug (NSAID), not a salycilate.
While transporting an elderly woman who was complaining of nausea, vomiting, and
weakness, she suddenly becomes unresponsive. You should:
A) analyze her cardiac rhythm with the AED.
B) open her airway and ensure that it is clear.
C) assess for signs of breathing and a pulse.
D) place her on her side in case she vomits.
- Correct Answer :C) assess for signs of breathing and a pulse.
If a patient is found unresponsive or becomes unresponsive in your presence, your first
action should be to assess for breathing and a pulse; this assessment can occur
A+ TEST BANK 4
JB Learning Cardiology Exam 1 / JB Learning
Cardiology Exam Preparation /JB Learning
Cardiology Practice Exam Newest 2025/2026
Complete 300 Questions And Correct Detailed
Answers (Verified Rationales)
Which of the following structures is the primary pacemaker, which sets the normal rate for
the heart?
A) Bundle of His
B) Purkinje fibers
C) Sinoatrial node
D) Atrioventricular node
- Correct Answer :C) Sinoatrial node
Cardiac pacemakers are bundles of nerves that generate electrical impulses and conduct
them to the cardiac cells, resulting in contraction of the myocardium (heart muscle). In a
normal healthy heart, the sinoatrial (SA) node is the primary pacemaker that sets the
inherent rate for the heart. The SA node generates electricity at a rate of 60 to 100 electrical
discharges per minute; hence the normal adult heart rate is 60 to 100 beats/min. The
atrioventricular (AV) node serves as the heart's secondary pacemaker; if the SA node fails,
the AV node resumes the pacing function of the heart, although at a slower rate (40 to 60
beats/min). The bundle of His and Purkinjie fibers, located within the ventricles, may serve as
tertiary pacemakers if the SA and AV nodes fail; their inherent pacing rate is 20 to 40
beats/min.
A+ TEST BANK 1
, JB Learning Cardiology Exam
When assessing a patient who complains of chest pain, which of the following questions
would you ask to assess the "R" in OPQRST?
A) Did the pain begin suddenly or gradually?
B) What were you doing when the pain began?
C) Is there anything that makes the pain worse?
D) Is the pain in one place or does it move around?
- Correct Answer :D) Is the pain in one place or does it move around?
A middle-aged man was found unresponsive by his wife. When you arrive at the scene, you
assess the patient and determine that he is apneic and pulseless. You should:
A) immediately begin CPR, reassess for a carotid pulse after 60 seconds, and then apply the
AED.
B) immediately apply the AED, analyze his cardiac rhythm, deliver a shock if indicated, and
begin CPR.
C) begin CPR starting with chest compressions, apply the AED as soon as possible, and
request backup.
D) perform CPR with a compression to ventilation ratio of 15:2, apply the AED, and request
backup.
- Correct Answer :C) begin CPR starting with chest compressions, apply the AED as soon as
possible, and request backup.
You are treating a 60-year-old man in cardiac arrest. After delivering a shock with the AED
and performing CPR for 2 minutes, you achieve return of spontaneous circulation. Your next
action should be to:
A) provide rapid transport to the hospital.
B) reanalyze his rhythm for confirmation.
C) assess his airway and ventilatory status.
A+ TEST BANK 2
, JB Learning Cardiology Exam
D) remove the AED and apply 100% oxygen.
- Correct Answer :C) assess his airway and ventilatory status.
If return of spontaneous circulation (ROSC) occurs (eg, a palpable pulse is restored), your
first action should be to reassess the patient's airway and ventilatory status. If the patient
remains apneic, continue rescue breathing at a rate of 10 breaths/min (one breath every 6
seconds). If the patient is breathing adequately, administer supplemental oxygen in a
concentration that is sufficient to maintain an oxygen saturation that is between 92% and
98%. After reassessing the airway and breathing, and treating the patient accordingly, you
should prepare for immediate transport. Because of the high risk that cardiac arrest can
recur following resuscitation, you should not remove the AED pads; simply turn the AED off
instead. Analysis of the patient's cardiac rhythm is not indicated because he now has a pulse.
In patients with heart disease, acute coronary syndrome is MOST often the result of:
A) atrial damage.
B) atherosclerosis.
C) coronary artery spasm.
D) coronary artery rupture. - Correct Answer :B) atherosclerosis.
After applying the AED to an adult patient in cardiac arrest, you analyze her cardiac rhythm
and receive a shock advised message. Emergency medical responders, who arrived at the
scene before you, tell you that bystander CPR was not in progress upon their arrival. You
should:
A) perform CPR for 2 minutes and then defibrillate.
B) detach the AED and prepare for immediate transport.
C) deliver the shock as indicated followed immediately by CPR.
D) notify medical control and request permission to cease resuscitation
. - Correct Answer :C) deliver the shock as indicated followed immediately by CPR.
A+ TEST BANK 3
, JB Learning Cardiology Exam
Aspirin may be contraindicated in patients with:
A) glaucoma.
B) diabetes.
C) stomach ulcers.
D) ibuprofen allergy.
- Correct Answer :C) stomach ulcers
Aspirin (acetylsalicylic acid [ASA]) inhibits platelet aggregation, thus preventing clots from
forming or preventing an existing clot from getting bigger. Aspirin, in a dose of 160 to 325
mg, should be administered to patients experiencing acute coronary syndrome (ie, unstable
angina, acute myocardial infarction) as soon as possible. Aspirin is absolutely
contraindicated for patients who are allergic to salicylates. Because aspirin prolongs
bleeding time, it may be contraindicated for patients with stomach ulcers; therefore, you
should contact medical control before giving aspirin to such patients. Aspirin is not
contraindicated for patients with glaucoma or diabetes. Ibuprofen, the active ingredient in
Motrin and Advil, is a nonsteroidal anti-inflammatory drug (NSAID), not a salycilate.
While transporting an elderly woman who was complaining of nausea, vomiting, and
weakness, she suddenly becomes unresponsive. You should:
A) analyze her cardiac rhythm with the AED.
B) open her airway and ensure that it is clear.
C) assess for signs of breathing and a pulse.
D) place her on her side in case she vomits.
- Correct Answer :C) assess for signs of breathing and a pulse.
If a patient is found unresponsive or becomes unresponsive in your presence, your first
action should be to assess for breathing and a pulse; this assessment can occur
A+ TEST BANK 4
