BASIC ARRHYTHMIA LATEST
SENTARA EXAM
5 steps to EKG Interpretation - ANSWERS-1) Look for P waves
If present are they uniform and upright?
Does every P wave have a QRS?
2) Measure PR Interval (PRI)
3) Measure QRS
QT interval is important to measure as many medications can affect its'
duration, however, this does not alter the interpretation.
4) Identify Rhythm as regular or irregular
5) Count Rate
PR interval length - ANSWERS-0.12 - 0.20 seconds
QRS Interval length - ANSWERS-0.06 - 0.12 seconds
QT Interval length - ANSWERS-0.32 - 0.44 seconds
Length of small squares on EKG - ANSWERS-0.04 seconds
Length of regular squares on EKG - ANSWERS-0.2 seconds
END OF
PAGE 1
, BASIC ARRHYTHMIA LATEST
SENTARA EXAM
P wave represents - ANSWERS-atrial depolarization (contraction)
QRS represents - ANSWERS-ventricular depolarization (contraction)
QTI represents - ANSWERS-Inherent Rate of Purkinjie fibers
Normal Sinus Rhythm Interpretation - ANSWERS-P wave: Upright,
uniform, round, before each QRS
PRI: 0.12 - 0.20 seconds QRS: 0.06 - 0.12 seconds
Rhythm: Regular Rate: 60-100
What indicates that the electrical impulse is generated by the sinus node
and is following the normal conduction pathway through the atria? -
ANSWERS-Rounded upright P waves
Sinus Bradycardia Interpretation - ANSWERS-P wave: Upright,
uniform, rounded, before each QRS PRI: 0.12 - 0.20 seconds QRS: 0.06
- 0.12 seconds
Rhythm: Regular Rate: Less than 60
END OF
PAGE 2
SENTARA EXAM
5 steps to EKG Interpretation - ANSWERS-1) Look for P waves
If present are they uniform and upright?
Does every P wave have a QRS?
2) Measure PR Interval (PRI)
3) Measure QRS
QT interval is important to measure as many medications can affect its'
duration, however, this does not alter the interpretation.
4) Identify Rhythm as regular or irregular
5) Count Rate
PR interval length - ANSWERS-0.12 - 0.20 seconds
QRS Interval length - ANSWERS-0.06 - 0.12 seconds
QT Interval length - ANSWERS-0.32 - 0.44 seconds
Length of small squares on EKG - ANSWERS-0.04 seconds
Length of regular squares on EKG - ANSWERS-0.2 seconds
END OF
PAGE 1
, BASIC ARRHYTHMIA LATEST
SENTARA EXAM
P wave represents - ANSWERS-atrial depolarization (contraction)
QRS represents - ANSWERS-ventricular depolarization (contraction)
QTI represents - ANSWERS-Inherent Rate of Purkinjie fibers
Normal Sinus Rhythm Interpretation - ANSWERS-P wave: Upright,
uniform, round, before each QRS
PRI: 0.12 - 0.20 seconds QRS: 0.06 - 0.12 seconds
Rhythm: Regular Rate: 60-100
What indicates that the electrical impulse is generated by the sinus node
and is following the normal conduction pathway through the atria? -
ANSWERS-Rounded upright P waves
Sinus Bradycardia Interpretation - ANSWERS-P wave: Upright,
uniform, rounded, before each QRS PRI: 0.12 - 0.20 seconds QRS: 0.06
- 0.12 seconds
Rhythm: Regular Rate: Less than 60
END OF
PAGE 2
