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CRAT PRACTICE EXAM A&B 500 QUESTIONS AND
CORRECT WELL ELABORATED ANSWERS LATEST
UPDATE JUST RELEASED THIS YEAR
Question: As an electrical current travels toward the negative pole on an ECG, the waveform
deflects which direction?
Upward
Right angle
Downward
Left angle - CORRECT ANSWER✔✔Downward
Question: Which of the following does the CDC recommend that healthcare workers not have?
Long hair
Short nails
Artificial nails
All of the above - CORRECT ANSWER✔✔Artificial nails
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Question: Which of the following pacemaker complications involves irregular pacemaker
intervals with slower than set rate impulses and no visual pacemaker spike?
Oversensing
Loss of capture
Malsensing
Malfunctioning - CORRECT ANSWER✔✔Malfunctioning
Question: Potassium and which of the following are needed in order for the heart to function
normally?
Chloride
Creatinine
Calcium
Magnesium - CORRECT ANSWER✔✔Calcium
Question: ________________ is a complication in which the pacemaker does not send
electrical impulse to the myocardium. In this complication pacemaker intervals are irregular and
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the impulse is slower than the set rate. There is no pacemaker spike seen. - CORRECT
ANSWER✔✔Malfunctioning
Question: There are 3 electrolytes which the heart needs to function properly:
1. _________
2. ________
3. _________
If one of these three are lacking, the heart doesn't function well. - CORRECT
ANSWER✔✔Potassium, Calcium, Sodium
Question: Saying words correctly would be considered ___________. Speaking clearly would be
considered __________. - CORRECT ANSWER✔✔pronunciation, enunciation
Question: Premature atrial contractions are rarely dangerous but in a patient with which of the
following conditions, they can serve as an early sign of heart failure or electrolyte imbalance?
Nonconductor premature atrial contractions
Hypoxia
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Acute myocardial infarction
Pulmonary disease - CORRECT ANSWER✔✔Acute myocardial infarction
Question: Patients with an __________ ___________ ____________, premature atrial
contractions can serve as an early sign of heart failure or an electrolyte imbalance. Premature
atrial contractions in patient's with heart disease can lead to serious arrhythmias such as atrial
flutter and atrial fibrillation. - CORRECT ANSWER✔✔Acute myocardial infarction
Question: The CDC recommends that healthcare providers not have _____________ ________
as they are more apt to harbor gram-negative pathogens than natural nails, both before and
after proper hand washing techniques. The CDC recommends that natural nails be no longer
than 1/4 inch long as they can harbor pathogens at longer lengths. - CORRECT
ANSWER✔✔Artificial nails
Question: As an electrical current travels toward the negative pole, the waveform deflects in a
__________ direction. When the current flows perpendicular to the lead, the waveform can be
CRAT PRACTICE EXAM A&B 500 QUESTIONS AND
CORRECT WELL ELABORATED ANSWERS LATEST
UPDATE JUST RELEASED THIS YEAR
Question: As an electrical current travels toward the negative pole on an ECG, the waveform
deflects which direction?
Upward
Right angle
Downward
Left angle - CORRECT ANSWER✔✔Downward
Question: Which of the following does the CDC recommend that healthcare workers not have?
Long hair
Short nails
Artificial nails
All of the above - CORRECT ANSWER✔✔Artificial nails
, Page 2 of 232
Question: Which of the following pacemaker complications involves irregular pacemaker
intervals with slower than set rate impulses and no visual pacemaker spike?
Oversensing
Loss of capture
Malsensing
Malfunctioning - CORRECT ANSWER✔✔Malfunctioning
Question: Potassium and which of the following are needed in order for the heart to function
normally?
Chloride
Creatinine
Calcium
Magnesium - CORRECT ANSWER✔✔Calcium
Question: ________________ is a complication in which the pacemaker does not send
electrical impulse to the myocardium. In this complication pacemaker intervals are irregular and
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the impulse is slower than the set rate. There is no pacemaker spike seen. - CORRECT
ANSWER✔✔Malfunctioning
Question: There are 3 electrolytes which the heart needs to function properly:
1. _________
2. ________
3. _________
If one of these three are lacking, the heart doesn't function well. - CORRECT
ANSWER✔✔Potassium, Calcium, Sodium
Question: Saying words correctly would be considered ___________. Speaking clearly would be
considered __________. - CORRECT ANSWER✔✔pronunciation, enunciation
Question: Premature atrial contractions are rarely dangerous but in a patient with which of the
following conditions, they can serve as an early sign of heart failure or electrolyte imbalance?
Nonconductor premature atrial contractions
Hypoxia
, Page 4 of 232
Acute myocardial infarction
Pulmonary disease - CORRECT ANSWER✔✔Acute myocardial infarction
Question: Patients with an __________ ___________ ____________, premature atrial
contractions can serve as an early sign of heart failure or an electrolyte imbalance. Premature
atrial contractions in patient's with heart disease can lead to serious arrhythmias such as atrial
flutter and atrial fibrillation. - CORRECT ANSWER✔✔Acute myocardial infarction
Question: The CDC recommends that healthcare providers not have _____________ ________
as they are more apt to harbor gram-negative pathogens than natural nails, both before and
after proper hand washing techniques. The CDC recommends that natural nails be no longer
than 1/4 inch long as they can harbor pathogens at longer lengths. - CORRECT
ANSWER✔✔Artificial nails
Question: As an electrical current travels toward the negative pole, the waveform deflects in a
__________ direction. When the current flows perpendicular to the lead, the waveform can be
