EKG INTERPRETATION (HCA) ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ sinus dysrhythmia.
Answer: same as sinus rhythm but with a pattered irregularity faster than
slower then faster than slower
◍ Sinus arrest.
Answer: pause in sinus rhythm
◍ Wandering atrial pacemaker.
Answer: shift between SA node and AV node3 different looking P waves
Rate: 60-100Regularity: slightly irregular P waves: at least 3 different
onesQRS: normalPR: vary when P wave is present QT: normal
◍ What does the P wave represent?.
Answer: atrial contraction
◍ Premature atrial complexes.
Answer: early beats Rate: depends on underlyingRegularity: irregular
because of the early beat P waves: different than underlyingQRS:
normalPR: vary on early beatQT: normal
◍ Define: Repolarization.
Answer: when the heart recovers electronically
◍ Define: Depolarization.
Answer: contraction of cardiac cells
◍ Atrial tachycardia.
Answer: rapid dysrhythmia from atria so fast it overrides SA node Rate:
150-250 Regularity: normalP waves: depending on underlying QRS:
, normalPR: depends QT: normal
◍ What does the QRS wave represent?.
Answer: ventricular contraction
◍ What does the T wave represent?.
Answer: ventricular relaxation
◍ Which wave only occurs occasionally in some patients?.
Answer: the U wave
◍ What does the vertical line on the EKG represent?.
Answer: voltage
◍ Supraventricular tachycardia.
Answer: anything over 150
◍ What does the horizontal line on the EKG represent?.
Answer: time
◍ Atrial flutter.
Answer: Rate: 250-350 Regularity: depends P waves: absent QRS:
normalOR: naQT: naconduction ratio
◍ Atrial fibrillation.
Answer: totally irregular with no P waves
◍ What is one box equal to?.
Answer: .04 sec
◍ Premature junctional complex.
Answer: single early electrical impulsep can be small, before, during, or
after qrsRate: depends Regularity: irregular due to ealry beat P waves:
inverted, before, during, or after QRS: normalOR: short
◍ What are 5 large squares equal to?.
Answer: .2 sec
◍ Junctional escape rhythm.
Answer: slow av rate Rate: 40-60Regularity: regular P waves: invertied,
EXAM PAPER 2026 QUESTIONS WITH
ANSWERS GRADED A+
◍ sinus dysrhythmia.
Answer: same as sinus rhythm but with a pattered irregularity faster than
slower then faster than slower
◍ Sinus arrest.
Answer: pause in sinus rhythm
◍ Wandering atrial pacemaker.
Answer: shift between SA node and AV node3 different looking P waves
Rate: 60-100Regularity: slightly irregular P waves: at least 3 different
onesQRS: normalPR: vary when P wave is present QT: normal
◍ What does the P wave represent?.
Answer: atrial contraction
◍ Premature atrial complexes.
Answer: early beats Rate: depends on underlyingRegularity: irregular
because of the early beat P waves: different than underlyingQRS:
normalPR: vary on early beatQT: normal
◍ Define: Repolarization.
Answer: when the heart recovers electronically
◍ Define: Depolarization.
Answer: contraction of cardiac cells
◍ Atrial tachycardia.
Answer: rapid dysrhythmia from atria so fast it overrides SA node Rate:
150-250 Regularity: normalP waves: depending on underlying QRS:
, normalPR: depends QT: normal
◍ What does the QRS wave represent?.
Answer: ventricular contraction
◍ What does the T wave represent?.
Answer: ventricular relaxation
◍ Which wave only occurs occasionally in some patients?.
Answer: the U wave
◍ What does the vertical line on the EKG represent?.
Answer: voltage
◍ Supraventricular tachycardia.
Answer: anything over 150
◍ What does the horizontal line on the EKG represent?.
Answer: time
◍ Atrial flutter.
Answer: Rate: 250-350 Regularity: depends P waves: absent QRS:
normalOR: naQT: naconduction ratio
◍ Atrial fibrillation.
Answer: totally irregular with no P waves
◍ What is one box equal to?.
Answer: .04 sec
◍ Premature junctional complex.
Answer: single early electrical impulsep can be small, before, during, or
after qrsRate: depends Regularity: irregular due to ealry beat P waves:
inverted, before, during, or after QRS: normalOR: short
◍ What are 5 large squares equal to?.
Answer: .2 sec
◍ Junctional escape rhythm.
Answer: slow av rate Rate: 40-60Regularity: regular P waves: invertied,
