Relias Dysrhythmia Basic A Test study guide questions and answers 2024

Relias Dysrhythmia Basic A Test study
guide questions and answers 2024


1st Degree AV Block - 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 - 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 - 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 - 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

Husband and wife live separate lives and don't communicate

SA Node - 1st

, 60-100

AV Node - 2nd
40-60

Bundle of His - 3rd
40-45

Right and Left Bundle Branches - 4th
40-45

Purkinje Fibers - 5th
20-50

1 Small Box - 0.04 sec

1 Big Box - 0.20 sec

Junctional Rhythms - SA Node DID NOT FIRE
AV Node fired
NO P WAVE bc SA node didn't fire
Narrow QRS

P Wave - Amplitude 0.5-2.5 mm
Will be shorter than T wave
Shows firing of SA node

QRS - 0.06-0.10 sec SHOULD BE <0.12 sec

Wide QRS: delay in ventricular contraction, delay of conduction through bundle
branches or purkinje fibers
BUNDLE BRANCH BLOCK or BLOCK IN PURKINJE FIBERS (idioventricular)

Calculate Regular Rate - 1500/ # boxes R-R

Calculate Irregular Rate - # of Rs in 6 sec strip X 10

Unifocal PVCs - Only 1 shape PVC

Bigeminy - PVC occurs every OTHER beat

Trigeminy - PVC occurs every THIRD beat

Couplet - 2 PVCs together

Triplet - 3 PVCs together