CRAT Latest 150 Real Exam Questions and
Solutions (2026) | Updated Question Bank |
Grade A+
• Potassium and __________ are needed in order for the heart to function normally -
✓✓Calcium
• Premature atrial contractions are rarely dangerous but with what condition could this
be an early sign of heart failure or electrolyte imbalance? -✓✓Acute myocardial
infarction
• As an electrical current travels toward the negative pole on an ecg, the waveform
defects in which direction? -✓✓Downward
• late ventricular depolarization is represented by? -✓✓S wave
• Why is the left side of the heart thicker than the right? -✓✓It pumps blood back to all
the parts of the body
• What starts at the beginning of the p wave and stops at the begging of the QRS
complex? -✓✓PR interval
• A common cause of artificial on a cardiac rhythm strip would be considered? -
✓✓Somatic tremors
• How many leads does a 24 hour holter monitor have? -✓✓5
• If there is a preconfigured group of orders which are commonly ordered together for a
specific diagnosis or condition would be? -✓✓Order set
• A single chamber pacemaker has one lead inserted into either the right atrium or? -
✓✓Right ventricle
• If a patient is experiencing ventricular fibrillation where in the heart would the electrical
impulses come from? -✓✓Many different foci
• What condition would be a biventricualr pacer typically be used for? -✓✓Pre cardiac
transplant patients
• The heart activity that begins with atrial depolarization and ends with the start of
ventricular depolarization is know as? -✓✓PR interval
, • If the T wave is bumpy instead of smooth what might it indicate? -✓✓Hidden p wave
• paroxysmal atrial tachycardia commonly follows? -✓✓Premature atrial contractions
• Atrial standstill is called________ if only one or two beats are not formed -✓✓Sinus
pause
• True or False
SA node failure could cause sinus arrest -✓✓True
• What acts as a safety mechanism to protect the heart from ventricular standstill? -
✓✓Idioventricular rhythms
• What can occur with coronary artery disease, cardiomyopathy, cor pulmonale, and
pulmonary embolism? -✓✓Right bundle branch block
• What color is the chest lead? -✓✓Brown
• What could be administered to a patient to correct a junctional escape rhythm? -
✓✓Atropine
• Impulses causing depolarization twice in a row in a faster than normal rate are referred
to as which of the following? -✓✓Re-entry events
• 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
Solutions (2026) | Updated Question Bank |
Grade A+
• Potassium and __________ are needed in order for the heart to function normally -
✓✓Calcium
• Premature atrial contractions are rarely dangerous but with what condition could this
be an early sign of heart failure or electrolyte imbalance? -✓✓Acute myocardial
infarction
• As an electrical current travels toward the negative pole on an ecg, the waveform
defects in which direction? -✓✓Downward
• late ventricular depolarization is represented by? -✓✓S wave
• Why is the left side of the heart thicker than the right? -✓✓It pumps blood back to all
the parts of the body
• What starts at the beginning of the p wave and stops at the begging of the QRS
complex? -✓✓PR interval
• A common cause of artificial on a cardiac rhythm strip would be considered? -
✓✓Somatic tremors
• How many leads does a 24 hour holter monitor have? -✓✓5
• If there is a preconfigured group of orders which are commonly ordered together for a
specific diagnosis or condition would be? -✓✓Order set
• A single chamber pacemaker has one lead inserted into either the right atrium or? -
✓✓Right ventricle
• If a patient is experiencing ventricular fibrillation where in the heart would the electrical
impulses come from? -✓✓Many different foci
• What condition would be a biventricualr pacer typically be used for? -✓✓Pre cardiac
transplant patients
• The heart activity that begins with atrial depolarization and ends with the start of
ventricular depolarization is know as? -✓✓PR interval
, • If the T wave is bumpy instead of smooth what might it indicate? -✓✓Hidden p wave
• paroxysmal atrial tachycardia commonly follows? -✓✓Premature atrial contractions
• Atrial standstill is called________ if only one or two beats are not formed -✓✓Sinus
pause
• True or False
SA node failure could cause sinus arrest -✓✓True
• What acts as a safety mechanism to protect the heart from ventricular standstill? -
✓✓Idioventricular rhythms
• What can occur with coronary artery disease, cardiomyopathy, cor pulmonale, and
pulmonary embolism? -✓✓Right bundle branch block
• What color is the chest lead? -✓✓Brown
• What could be administered to a patient to correct a junctional escape rhythm? -
✓✓Atropine
• Impulses causing depolarization twice in a row in a faster than normal rate are referred
to as which of the following? -✓✓Re-entry events
• 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
