APEX EKG TEST ACTUAL EXAM PAPER
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ EKG Grid.
Answer: Each small square (the smaller lighter boxes within the big bold
boxes) represents 0.04 seconds Each larger square (the boxes within the
bold lines) represents 0.2 seconds. Each large square has 5 small squares
across SO 0.04 X 5 = 0.2 seconds
◍ What is an ECG?.
Answer: electrocardiogram is a recording of the hearts electrical activity
from various angles or leads, and on various sized paper
◍ what does normal ECG waveform look like?.
Answer: in waveform, development, the speed at which the electrical
waveform moves across the myocardium during atrial and ventricular
contraction (depolarization) and relaxation (repolarization) determines the
type and size of the deflection recorded on an ECG.
◍ The 6 Second Strip Method.
Answer: Least accurate, but quickest way to estimate rate especially in
irregular rhythms
◍ P Wave.
Answer: Atrial depolarization
◍ What are some wave types?.
Answer: P wave, QRS, and T wave
◍ PR Interval.
Answer: Normal is 0.12 to 0.20 secondsCorresponds to the delay the AV
, node provides to allow for ventricular filling
◍ QRS Complex.
Answer: Normal is <0.12 seconds usually between 0.06 to 0.10
secondsVentricular depolarization
◍ QT Interval.
Answer: Normal 0.36-0.46
◍ 6 Steps for Rhythm Interpretation.
Answer: Determine RegularityCalculate the RateEvaluate the P
waveMeasure the PRIEvaluate the QRS WidthEvaluate the T wave and
Calculate the QTI
◍ Normal Sinus Rhythm.
Answer: Regularity: atrial and ventricular rate are regular Rate: 60 to 100
beats per minuteP wave: upright, smooth, round and uniform shape, one for
every QRS complexPRI : 0.12 to 0.20 seconds QRS: 0.06 to 0.10 seconds
QTI: 0.36 to 0.46 secondsT wave: upright, smooth and round uniform shape
◍ What is P wave?.
Answer: represents atrial depolarization as electrical impulses conduct
through the atria in ring-like waves from the SA node. appears on ECG as
smaller, rounded deflection.- represents electrical depolarization of the atria
normal P waves do not exceed 2.5mm in amplitude and are usually wide.
◍ What is QRS wave?.
Answer: represents the centricular depolarization as conduction reaches the
larger ventricular pathway through the bundle branches and purkinje fibers.
appears on ECG as rapid, large spike deflection, the stimulation atrial
repolarization waveform is buries in the QRS and not seen.
◍ What is T wave?.
Answer: represents the ventricular repolarization or relaxation. appears of
ECG as larger, rounded deflection.
◍ Sinus Bradycardia.
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ EKG Grid.
Answer: Each small square (the smaller lighter boxes within the big bold
boxes) represents 0.04 seconds Each larger square (the boxes within the
bold lines) represents 0.2 seconds. Each large square has 5 small squares
across SO 0.04 X 5 = 0.2 seconds
◍ What is an ECG?.
Answer: electrocardiogram is a recording of the hearts electrical activity
from various angles or leads, and on various sized paper
◍ what does normal ECG waveform look like?.
Answer: in waveform, development, the speed at which the electrical
waveform moves across the myocardium during atrial and ventricular
contraction (depolarization) and relaxation (repolarization) determines the
type and size of the deflection recorded on an ECG.
◍ The 6 Second Strip Method.
Answer: Least accurate, but quickest way to estimate rate especially in
irregular rhythms
◍ P Wave.
Answer: Atrial depolarization
◍ What are some wave types?.
Answer: P wave, QRS, and T wave
◍ PR Interval.
Answer: Normal is 0.12 to 0.20 secondsCorresponds to the delay the AV
, node provides to allow for ventricular filling
◍ QRS Complex.
Answer: Normal is <0.12 seconds usually between 0.06 to 0.10
secondsVentricular depolarization
◍ QT Interval.
Answer: Normal 0.36-0.46
◍ 6 Steps for Rhythm Interpretation.
Answer: Determine RegularityCalculate the RateEvaluate the P
waveMeasure the PRIEvaluate the QRS WidthEvaluate the T wave and
Calculate the QTI
◍ Normal Sinus Rhythm.
Answer: Regularity: atrial and ventricular rate are regular Rate: 60 to 100
beats per minuteP wave: upright, smooth, round and uniform shape, one for
every QRS complexPRI : 0.12 to 0.20 seconds QRS: 0.06 to 0.10 seconds
QTI: 0.36 to 0.46 secondsT wave: upright, smooth and round uniform shape
◍ What is P wave?.
Answer: represents atrial depolarization as electrical impulses conduct
through the atria in ring-like waves from the SA node. appears on ECG as
smaller, rounded deflection.- represents electrical depolarization of the atria
normal P waves do not exceed 2.5mm in amplitude and are usually wide.
◍ What is QRS wave?.
Answer: represents the centricular depolarization as conduction reaches the
larger ventricular pathway through the bundle branches and purkinje fibers.
appears on ECG as rapid, large spike deflection, the stimulation atrial
repolarization waveform is buries in the QRS and not seen.
◍ What is T wave?.
Answer: represents the ventricular repolarization or relaxation. appears of
ECG as larger, rounded deflection.
◍ Sinus Bradycardia.
