RELIAS DYSRHYTHMIA STUDY GUIDE 2026
COMPREHENSIVE ANSWER DIGEST
◉1st Degree AV Block. Answer: Regular
Rate: 60-100
P Wave: Present, upright
PR interval: >0.20 sec CONSISTENTLY LONG
QRS: <0.12 sec
Husband stays late till 9 consistently
◉2nd Degree AV Block Type I Mobitz, Wenckebach. Answer:
IRREGULAR
Rate: 60-100
P wave: Present, upright
PR Interval: Progressively longer until drop (PR interval longer and
longer until drop)
QRS: <0.12 sec
, Husband stays late till 9, then 11, then 1, then doesn't come home at
all
◉2nd Degree AV Block Type II. Answer: Irregular or regular
Rate: <60
P wave: Present, upright
PR Interval: PR interval consistently LONGER like type 1 but then a
QRS will drop
QRS: <0.12 sec
Husband stays late till 9 consistently, then wife goes out and doesn't
come home
◉3rd Degree AV Block. Answer: Atrials and ventricles don't
communicate
Rate: regular atrial
P wave: Present, upright
No relationship between P waves and QRS
PR Interval: VARIABLE
QRS: variable
P-P ad R-R consistent but NO correlation
COMPREHENSIVE ANSWER DIGEST
◉1st Degree AV Block. Answer: Regular
Rate: 60-100
P Wave: Present, upright
PR interval: >0.20 sec CONSISTENTLY LONG
QRS: <0.12 sec
Husband stays late till 9 consistently
◉2nd Degree AV Block Type I Mobitz, Wenckebach. Answer:
IRREGULAR
Rate: 60-100
P wave: Present, upright
PR Interval: Progressively longer until drop (PR interval longer and
longer until drop)
QRS: <0.12 sec
, Husband stays late till 9, then 11, then 1, then doesn't come home at
all
◉2nd Degree AV Block Type II. Answer: Irregular or regular
Rate: <60
P wave: Present, upright
PR Interval: PR interval consistently LONGER like type 1 but then a
QRS will drop
QRS: <0.12 sec
Husband stays late till 9 consistently, then wife goes out and doesn't
come home
◉3rd Degree AV Block. Answer: Atrials and ventricles don't
communicate
Rate: regular atrial
P wave: Present, upright
No relationship between P waves and QRS
PR Interval: VARIABLE
QRS: variable
P-P ad R-R consistent but NO correlation