NHA CET PRACTICE EXAM 2025/2026 QUESTIONS
WITH SOLUTION GRADED A+
✔✔Supraventricular Tachycardia (SVT) - ✔✔P wave: May be hard to find. If present,
one per QRS complex
PR interval: usually not measurable
QRS duration: .04 to .10 seconds
ventricular rate: 150 to 240/min
Rhythm regularity: regular
✔✔Premature Atrial Complex - ✔✔atrial depolarization that occur early in the cardiac
cycle. The characteristic findings on an EKG include:
A p wave (may be buried in the preceding T wave)
A QRS complex that follows
A QRS that looks the same as the QRS complexes in the underlying rhythm
✔✔PACs rhythm regularity - ✔✔are not rhythms! they are complexes that appear in an
underlying rhythm. First name the underlying rhythm, and then add PAC.
✔✔Premature beat - ✔✔beat that occurs early in the cycle, followed by a rest period
known as a compensatory pause.
✔✔Junctional Rhythm - ✔✔P wave: Absent or inverted.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds QRS complex on the long end
of normal (can be wide)
ventricular rate: 40 to 60/min
Rhythm regularity: regular
✔✔Junctional Bradycardia - ✔✔P wave: Absent or inverted.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds ventricular rate: less than
40/min
Rhythm regularity: regular
✔✔Accelerated Junctional Rhythm - ✔✔P wave: Absent, inverted, retrograde, or
inverted and retrograde.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds
ventricular rate: greater than 60/min
Rhythm regularity: regular
✔✔common ventricular Rhythms - ✔✔QRS complex wide
✔✔Idioventricular Rhythm (ventricular Escape Rhythm) - ✔✔P wave: none.
, PR interval: none
QRS duration: greater than .12seconds
ventricular rate: 20 to 40/min
Rhythm regularity: regular
✔✔Polymorphic ventricular Tachycardia - ✔✔P wave: none.
PR interval: none
QRS duration: greater than .12seconds
ventricular rate: 120/min
Rhythm regularity: regular
✔✔Ventricular Tachycardia (monomorphic) - ✔✔P wave: none.
PR interval: none
QRS duration: greater than .12seconds
ventricular rate: grater than 120/min
Rhythm regularity: regular
✔✔Ventricular fibrillation (vFib) - ✔✔P wave: none.
PR interval: none
QRS duration: none
ventricular rate: grater than 300/min
Rhythm regularity: irregular
an extremely chaotic rhythm with no discernible waves.
✔✔Asystole - ✔✔P wave: none.
PR interval: none
QRS duration: none
ventricular rate: none
Rhythm regularity: none
absence of electrical activity in the heart
✔✔Premature ventricular complex - ✔✔ventricular depolarization that occur early in the
cardiac cycle.
Absent P wave preceding the early QRS
A wide QRS complex
A QRS that looks different than the QRS complexes in the underlying rhythm
direction of the QRS complex and the T wave oppose one another
✔✔PVCs rhythms - ✔✔not rhythms, but are complexes that appear in an underlying
rhythm.
✔✔Heart blocks - ✔✔special set of arrhythmias that indicate a difficulty in
communication or no communication between the atria and ventricles
✔✔First-degree heart block - ✔✔P wave: one for every QRS complex.
WITH SOLUTION GRADED A+
✔✔Supraventricular Tachycardia (SVT) - ✔✔P wave: May be hard to find. If present,
one per QRS complex
PR interval: usually not measurable
QRS duration: .04 to .10 seconds
ventricular rate: 150 to 240/min
Rhythm regularity: regular
✔✔Premature Atrial Complex - ✔✔atrial depolarization that occur early in the cardiac
cycle. The characteristic findings on an EKG include:
A p wave (may be buried in the preceding T wave)
A QRS complex that follows
A QRS that looks the same as the QRS complexes in the underlying rhythm
✔✔PACs rhythm regularity - ✔✔are not rhythms! they are complexes that appear in an
underlying rhythm. First name the underlying rhythm, and then add PAC.
✔✔Premature beat - ✔✔beat that occurs early in the cycle, followed by a rest period
known as a compensatory pause.
✔✔Junctional Rhythm - ✔✔P wave: Absent or inverted.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds QRS complex on the long end
of normal (can be wide)
ventricular rate: 40 to 60/min
Rhythm regularity: regular
✔✔Junctional Bradycardia - ✔✔P wave: Absent or inverted.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds ventricular rate: less than
40/min
Rhythm regularity: regular
✔✔Accelerated Junctional Rhythm - ✔✔P wave: Absent, inverted, retrograde, or
inverted and retrograde.
PR interval: None or .12 to .20 seconds
QRS duration: .04 to .10 but may extend to .12seconds
ventricular rate: greater than 60/min
Rhythm regularity: regular
✔✔common ventricular Rhythms - ✔✔QRS complex wide
✔✔Idioventricular Rhythm (ventricular Escape Rhythm) - ✔✔P wave: none.
, PR interval: none
QRS duration: greater than .12seconds
ventricular rate: 20 to 40/min
Rhythm regularity: regular
✔✔Polymorphic ventricular Tachycardia - ✔✔P wave: none.
PR interval: none
QRS duration: greater than .12seconds
ventricular rate: 120/min
Rhythm regularity: regular
✔✔Ventricular Tachycardia (monomorphic) - ✔✔P wave: none.
PR interval: none
QRS duration: greater than .12seconds
ventricular rate: grater than 120/min
Rhythm regularity: regular
✔✔Ventricular fibrillation (vFib) - ✔✔P wave: none.
PR interval: none
QRS duration: none
ventricular rate: grater than 300/min
Rhythm regularity: irregular
an extremely chaotic rhythm with no discernible waves.
✔✔Asystole - ✔✔P wave: none.
PR interval: none
QRS duration: none
ventricular rate: none
Rhythm regularity: none
absence of electrical activity in the heart
✔✔Premature ventricular complex - ✔✔ventricular depolarization that occur early in the
cardiac cycle.
Absent P wave preceding the early QRS
A wide QRS complex
A QRS that looks different than the QRS complexes in the underlying rhythm
direction of the QRS complex and the T wave oppose one another
✔✔PVCs rhythms - ✔✔not rhythms, but are complexes that appear in an underlying
rhythm.
✔✔Heart blocks - ✔✔special set of arrhythmias that indicate a difficulty in
communication or no communication between the atria and ventricles
✔✔First-degree heart block - ✔✔P wave: one for every QRS complex.
