APEX EKG TEST LATEST UPDATED 2025 REAL FINAL EXAM WITH COMPLETE DETAILED QUESTIONS AND CORRECT VERIFIED ANSWERS ALREADY GRADED A+

APEX EKG TEST LATEST UPDATED 2025 REAL FINAL EXAM
WITH COMPLETE DETAILED QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY 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

,The 6 Second Strip Method
ANSWER-Least accurate, but quickest
way to estimate rate especially in
irregular rhythms



P Wave
ANSWER-Atrial depolarization



PR Interval
ANSWER-Normal is 0.12 to 0.20 seconds
Corresponds 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 seconds
Ventricular depolarization



QT Interval
ANSWER-Normal 0.36-0.46



6 Steps for Rhythm Interpretation
ANSWER-Determine Regularity

, Calculate the Rate
Evaluate the P wave
Measure the PRI
Evaluate the QRS Width
Evaluate the T wave and Calculate the
QTI



Normal Sinus Rhythm
ANSWER-Regularity: atrial and
ventricular rate are regular
Rate: 60 to 100 beats per minute
P wave: upright, smooth, round and
uniform shape, one for every QRS
complex