CRAT MAIN EXAMINATION SET 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔vagal maneuvers and medications such as which of the following can be employed
to slow the heart rate on symptomatic junctional tachycardia patients? - ✔✔Adenosine
✔✔If the Q wave is absent, the QRS complex should be measured from the beginning
of which wave? - ✔✔R
✔✔What artifact setting is commonly used to reduced artifact due to muscle tremor and
slight patient movement? - ✔✔40 Hz
✔✔What would you see on an ekg when looking for 2nd degree type 2 -
✔✔Occasionally dropped beat with normal AV node conduction
✔✔When interpreting a rhythm which one should always be irregular - ✔✔Atrial
fibrillation
✔✔The semilunar valves are called such because the cusps on these caves resemble?
- ✔✔Half moons
✔✔The data that is entered into an EKG machine would be considered? - ✔✔Input
✔✔In the pacemaker codes the first letter represents what? - ✔✔The heart chamber
being paced
✔✔The type of AV block that could cause cardiovascular collapse would be? -
✔✔Complete heart block (3rd degree)
✔✔The left bundle branch splits into two branches known as? - ✔✔Fasciculi
✔✔What is it called when there is lack of electrical activity in the atrium? - ✔✔Sinus
arrest
✔✔What does WAP stand for? - ✔✔Wondering atrial pacemaker
✔✔What is the largest artery in the body? - ✔✔Ascending aorta
✔✔Systolic and ______best describes the physiologic movements of the heart? -
✔✔Diastolic
✔✔When would a patient typically have a U wave? - ✔✔When the patient has very low
potassium
, ✔✔In the cardiac conduction system, why can't impulses flow backwards through the
system? - ✔✔Cells can't respond to another stimulus directly following depolarization
✔✔The atria relax and fill with blood during? - ✔✔Diastole
✔✔If a patient is diagnosed with a differential diagnosis of junctional tachycardia, they
should be treated with? - ✔✔Ablation therapy and a permanent pacemaker
✔✔What are symptoms of 3rd degree av block? - ✔✔Severe fatigue,chest pain,
pulmary edema
✔✔Sinus Tachycardia is characterized by heart rate above? - ✔✔100 bpm
✔✔What chamber of the heart has the thickest walls? - ✔✔Left ventricular
✔✔If the bundle of His becomes blocked, what can be activated as a pacemaker? -
✔✔Purkinje fibers
✔✔If the patient is experiencing hypokalemia, what might be seen on an EKG? - ✔✔U
wave
✔✔Originating above the ventricles, what will cause the heart to beat between 150 and
250 bpm? - ✔✔Atrial tachycardia
✔✔What is the thin layer that covers the myocardium? - ✔✔Epicardium
✔✔When applying the 10 times method to calculate the ventricular rate, which waves
do you count on the rhythm strip? - ✔✔R wave
✔✔What should also be checked in addition to the three methods of calculating atrial or
ventricular heart rate? - ✔✔Patient pulse
✔✔In measuring ventricular regularity if there is no R wave what could be measured
instead? - ✔✔The Q and S wave junction
✔✔True or False
The SA node protects the ventricles from the 400-609 erratic atrial impulses that occur
during atrial fibrillation - ✔✔False
The AV Node
✔✔Generally there's no treatment necessary for bradycardia unless the patient shows
symptoms of——- - ✔✔Decrease cardiac output
AND SOLUTIONS RATED A+
✔✔vagal maneuvers and medications such as which of the following can be employed
to slow the heart rate on symptomatic junctional tachycardia patients? - ✔✔Adenosine
✔✔If the Q wave is absent, the QRS complex should be measured from the beginning
of which wave? - ✔✔R
✔✔What artifact setting is commonly used to reduced artifact due to muscle tremor and
slight patient movement? - ✔✔40 Hz
✔✔What would you see on an ekg when looking for 2nd degree type 2 -
✔✔Occasionally dropped beat with normal AV node conduction
✔✔When interpreting a rhythm which one should always be irregular - ✔✔Atrial
fibrillation
✔✔The semilunar valves are called such because the cusps on these caves resemble?
- ✔✔Half moons
✔✔The data that is entered into an EKG machine would be considered? - ✔✔Input
✔✔In the pacemaker codes the first letter represents what? - ✔✔The heart chamber
being paced
✔✔The type of AV block that could cause cardiovascular collapse would be? -
✔✔Complete heart block (3rd degree)
✔✔The left bundle branch splits into two branches known as? - ✔✔Fasciculi
✔✔What is it called when there is lack of electrical activity in the atrium? - ✔✔Sinus
arrest
✔✔What does WAP stand for? - ✔✔Wondering atrial pacemaker
✔✔What is the largest artery in the body? - ✔✔Ascending aorta
✔✔Systolic and ______best describes the physiologic movements of the heart? -
✔✔Diastolic
✔✔When would a patient typically have a U wave? - ✔✔When the patient has very low
potassium
, ✔✔In the cardiac conduction system, why can't impulses flow backwards through the
system? - ✔✔Cells can't respond to another stimulus directly following depolarization
✔✔The atria relax and fill with blood during? - ✔✔Diastole
✔✔If a patient is diagnosed with a differential diagnosis of junctional tachycardia, they
should be treated with? - ✔✔Ablation therapy and a permanent pacemaker
✔✔What are symptoms of 3rd degree av block? - ✔✔Severe fatigue,chest pain,
pulmary edema
✔✔Sinus Tachycardia is characterized by heart rate above? - ✔✔100 bpm
✔✔What chamber of the heart has the thickest walls? - ✔✔Left ventricular
✔✔If the bundle of His becomes blocked, what can be activated as a pacemaker? -
✔✔Purkinje fibers
✔✔If the patient is experiencing hypokalemia, what might be seen on an EKG? - ✔✔U
wave
✔✔Originating above the ventricles, what will cause the heart to beat between 150 and
250 bpm? - ✔✔Atrial tachycardia
✔✔What is the thin layer that covers the myocardium? - ✔✔Epicardium
✔✔When applying the 10 times method to calculate the ventricular rate, which waves
do you count on the rhythm strip? - ✔✔R wave
✔✔What should also be checked in addition to the three methods of calculating atrial or
ventricular heart rate? - ✔✔Patient pulse
✔✔In measuring ventricular regularity if there is no R wave what could be measured
instead? - ✔✔The Q and S wave junction
✔✔True or False
The SA node protects the ventricles from the 400-609 erratic atrial impulses that occur
during atrial fibrillation - ✔✔False
The AV Node
✔✔Generally there's no treatment necessary for bradycardia unless the patient shows
symptoms of——- - ✔✔Decrease cardiac output
