EKG tech 7

Question 1

Wandering Atrial Pacemaker (WAP)

Answer 1

Rhythm: Regular/irregular

Rate: 60-100 or less than 60

Pwave: vary in size, shape, and direction across the rhythm strip, one P wave precedes each QRS complex

PR interval: usually normal but may change across the rhythm

QRS: .10 or less

Question 2

Multifocal atrial tachycardia (MAT)

Answer 2

it is when Wandering Atrial pacemaker is greater than 100 beats/min

Question 3

Premature Atrial contraction (PAC)

Answer 3

Rhythm: usually sinus, irregular with PAC

Rate: that of underlying rhythm

P wave: premature, abnormal in size, shape, or direction

PR interval: usually normal duration, not measurable if hidden in T wave

QRS: premature

Question 4

Nonconducted PAC

Answer 4

Rhythm: usually regular/irregular

Rate: underlying rhythm

P wave: premature and abnormal in size, shape, or direction often found hidden in preceding T wave

PR: not present in nonconducted PAC

QRS: No qrs complex after Pwave that is nonconducted