atrial rhythms

Question 1

atrial rhythms originate in

Answer 1

the atria

Question 2

atrial fibrillation

Answer 2

HR:
A- 350-650 bpm
V- slow-> rapid

Rhythm: irregular
Pwave: fibrillatory
QRS: <.12 secs
PR interval: N/A

Question 3

fibrillatory

Answer 3

fine to course

Question 4

Atrial flutter

Answer 4

HR:
A- 220-430 bpm
V- <300 bpm

rhythm: variable/regular
Pwave: sawtoothed pattern
QRS: <.12 secs
PR interval: N/A

Question 5

HR: usually <60 bpm
Rhythm: irregular
Pwave: multiple forms
QRS: <.12 secs
PR interval: variable

Answer 5

wandering pacemaker

Question 6

multifocal atrial tachycardia

Answer 6

rate is >100 bpm

usually due to a pulmonary issue and is often referred to as SVT by EMS

QRS is narrow and is recognized as a tachycardia

Question 7

SVT (atrial tachycardia)

Answer 7

HR: 140-250 bpm
Rhythm: regular
Pwave: abnormal before each QRS
QRS: <.12 secs
PR interval: <.20

Question 8

HR: N/A
Rhythm: irregular
Pwave: premature and abnormal for hidden
QRS: <.12 secs
PR interval: <.20

Answer 8

Premature Atrial Complex

Question 9

• caused by an abnormal accessory pathway in the conductive tissue
• mainly non-symptomatic with normal heart rates
• if heart rate becomes tachycardia (200-300) it can become lethal, which can be brought on by stress/exertion

Answer 9

Wolf-Parkinson-White