MAYO ECG UPDATED ACTUAL
Questions and CORRECT Answers
PR interval represents: - CORRECT ANSWER - electrical conduction time from the atria to
the AV node
Is atrial flutter benign? - CORRECT ANSWER - no
PR interval - CORRECT ANSWER - .12-.20
QRS interval - CORRECT ANSWER - <.12
What lead do you look at - CORRECT ANSWER - V1
Interventions - CORRECT ANSWER - assess the patient
QRS wave - CORRECT ANSWER - ventricular depolarization
P wave - CORRECT ANSWER - atrial depolarization
AV node purpose - CORRECT ANSWER - delays impulse from atria before it moves to the
ventricles
Where do you place the lead? - CORRECT ANSWER - right sternal border, 4th intercostal
space L!
Rhythm with only p waves - CORRECT ANSWER - Ventricular standstill
, SA node - CORRECT ANSWER - the node consisting of specialized cells capable of
automaticity at a rate of 60-100
Sinus Tachycardia - CORRECT ANSWER - a rhythm characterized by 100-160 beats per
minute
Automaticity - CORRECT ANSWER - the ability of the cell to spontaneously initiate an
impulse
Normal SR - CORRECT ANSWER - Impulse that initiates within the SA node at a rate of 60-
100 bpm
Escape Rhythm or beat - CORRECT ANSWER - when the sinus node fails and a lower
pacemaker takes over
Sinus Pause or Arrest - CORRECT ANSWER - the sinus node fails to generate an impulse for
one or more beats
rate 40-60
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - junctional escape rhythm
rate 60-100
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - accelerated junctional rhythm
rate 100-159
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - junctional tachycardia
Questions and CORRECT Answers
PR interval represents: - CORRECT ANSWER - electrical conduction time from the atria to
the AV node
Is atrial flutter benign? - CORRECT ANSWER - no
PR interval - CORRECT ANSWER - .12-.20
QRS interval - CORRECT ANSWER - <.12
What lead do you look at - CORRECT ANSWER - V1
Interventions - CORRECT ANSWER - assess the patient
QRS wave - CORRECT ANSWER - ventricular depolarization
P wave - CORRECT ANSWER - atrial depolarization
AV node purpose - CORRECT ANSWER - delays impulse from atria before it moves to the
ventricles
Where do you place the lead? - CORRECT ANSWER - right sternal border, 4th intercostal
space L!
Rhythm with only p waves - CORRECT ANSWER - Ventricular standstill
, SA node - CORRECT ANSWER - the node consisting of specialized cells capable of
automaticity at a rate of 60-100
Sinus Tachycardia - CORRECT ANSWER - a rhythm characterized by 100-160 beats per
minute
Automaticity - CORRECT ANSWER - the ability of the cell to spontaneously initiate an
impulse
Normal SR - CORRECT ANSWER - Impulse that initiates within the SA node at a rate of 60-
100 bpm
Escape Rhythm or beat - CORRECT ANSWER - when the sinus node fails and a lower
pacemaker takes over
Sinus Pause or Arrest - CORRECT ANSWER - the sinus node fails to generate an impulse for
one or more beats
rate 40-60
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - junctional escape rhythm
rate 60-100
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - accelerated junctional rhythm
rate 100-159
p wave inverted, occurs before, during, or after qrs
PR less than 0.12 - CORRECT ANSWER - junctional tachycardia
