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Cardiology JBL EXAM A & STUDY GUIDE ALL
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
QUESTION: A patient's medication regimen includes fluoxetine, Toprol, lansoprazole, and
Klonopin. Which of these medications is used to treat cardiovascular disorders?
A) Toprol
B) Proscar
C) fluoxetine
D) lansoprazole - ANSWER-A) Toprol
Toprol (Metaprolol) - Beta-blocker.
Used to treat various cardiovascular conditions, including hypertension and tachydysrhythmias.
Proscar (Finasteride) - is used to teat benign prostatic hyperplasia (BPH).
Hyperplasia - the enlargement of an organ or tissue caused by an increase in the reproduction
rate of its cells, often as an initial stage in the development of cancer.
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Fluoxetine (Prozac) selective serotonin reuptake inhibitor (SSRI) antidepressant.
Used to treat conditions such as depression, generalized anxiety disorder, and obsessive-
compulsive disorder (OCD).
Lansoprazole (Prevacid) - a proton pump inhibitor.
Used to treat conditions such as heartburn, acid reflux disease, and ulcers.
Clonazepam (Klonopin) - Benzodiazepine sedative-hypnotic.
Used to treat anxiety
QUESTION: Unlike a second-degree AV block type I, a second-degree AV block type II is
characterized by:
A: a progressive lengthening of the P-R interval.
B: dissociation of the P waves and QRS complexes.
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C: consistent P-R intervals following conducted P waves.
D: a ventricular rate that is less than 50 beats/min. - ANSWER-C: consistent P-R intervals
following conducted P waves.
A 2nd° AV block Mobitz type II (classic 2nd° AV block) is charachterized by more P waves than
QRS complexes. However, the P-R intervals of the conducted complexes (P waves that are
followed by a QRS complex) - whether shortened, normal, or prolonged - are consistent.
By contrast, a 2nd° AV block Mobitz type I (Wenckenbach) is characterized by a progressive
lenghthening of the P-R interval until a P wave is blocked (not followed by a QRS complex/non-
conductive).
The ventricular rate of a 2nd° AV block may be normal or slow.
Dissociation of the P wave and QRS complexes is characteristic of a 3rd° (complete) AV block.
Q; A patient's cardiac rhythm is irregular and the rate is 50 per minute. There are more P waves
than QRS complexes, and the PR intervals vary in duration. The paramedic should interpret the
cardiac rhythm as:
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A) atrial fibrillation
B) first-degree AV block
C) third-degree AV block
D) second-degree AV block - ANSWER-D) second-degree AV block
Second-degree AV block best fits the rhythm described. In second-degree AV block, there are
more P waves than QRS complexes. If the PR intervals vary in duration an the rhythm is
irregular, a type I second-degree AV block is present.
If the PR intervals of the conducted complexes are consistent, a type II second-degree AV block
is present.
Type II second-degree AV block can be regular or irregular, depending on whether or not a fixed
variable block is present..
First-degree AV block has a P-to-QRS ratio of 1:1. although the PR intervals are prolonged.
4
Cardiology JBL EXAM A & STUDY GUIDE ALL
QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR
QUESTION: A patient's medication regimen includes fluoxetine, Toprol, lansoprazole, and
Klonopin. Which of these medications is used to treat cardiovascular disorders?
A) Toprol
B) Proscar
C) fluoxetine
D) lansoprazole - ANSWER-A) Toprol
Toprol (Metaprolol) - Beta-blocker.
Used to treat various cardiovascular conditions, including hypertension and tachydysrhythmias.
Proscar (Finasteride) - is used to teat benign prostatic hyperplasia (BPH).
Hyperplasia - the enlargement of an organ or tissue caused by an increase in the reproduction
rate of its cells, often as an initial stage in the development of cancer.
1
, Page 2 of 163
Fluoxetine (Prozac) selective serotonin reuptake inhibitor (SSRI) antidepressant.
Used to treat conditions such as depression, generalized anxiety disorder, and obsessive-
compulsive disorder (OCD).
Lansoprazole (Prevacid) - a proton pump inhibitor.
Used to treat conditions such as heartburn, acid reflux disease, and ulcers.
Clonazepam (Klonopin) - Benzodiazepine sedative-hypnotic.
Used to treat anxiety
QUESTION: Unlike a second-degree AV block type I, a second-degree AV block type II is
characterized by:
A: a progressive lengthening of the P-R interval.
B: dissociation of the P waves and QRS complexes.
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, Page 3 of 163
C: consistent P-R intervals following conducted P waves.
D: a ventricular rate that is less than 50 beats/min. - ANSWER-C: consistent P-R intervals
following conducted P waves.
A 2nd° AV block Mobitz type II (classic 2nd° AV block) is charachterized by more P waves than
QRS complexes. However, the P-R intervals of the conducted complexes (P waves that are
followed by a QRS complex) - whether shortened, normal, or prolonged - are consistent.
By contrast, a 2nd° AV block Mobitz type I (Wenckenbach) is characterized by a progressive
lenghthening of the P-R interval until a P wave is blocked (not followed by a QRS complex/non-
conductive).
The ventricular rate of a 2nd° AV block may be normal or slow.
Dissociation of the P wave and QRS complexes is characteristic of a 3rd° (complete) AV block.
Q; A patient's cardiac rhythm is irregular and the rate is 50 per minute. There are more P waves
than QRS complexes, and the PR intervals vary in duration. The paramedic should interpret the
cardiac rhythm as:
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, Page 4 of 163
A) atrial fibrillation
B) first-degree AV block
C) third-degree AV block
D) second-degree AV block - ANSWER-D) second-degree AV block
Second-degree AV block best fits the rhythm described. In second-degree AV block, there are
more P waves than QRS complexes. If the PR intervals vary in duration an the rhythm is
irregular, a type I second-degree AV block is present.
If the PR intervals of the conducted complexes are consistent, a type II second-degree AV block
is present.
Type II second-degree AV block can be regular or irregular, depending on whether or not a fixed
variable block is present..
First-degree AV block has a P-to-QRS ratio of 1:1. although the PR intervals are prolonged.
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