ADVANCED DYSRHYTHMIAS
AH3
SA node
AV node
Bundle of His
Right & Left Bundle Branches
Purkinje Fibers
CARDIAC
CONDUCTION
PATHWAY
WAVEFORM
EQUIVALENT TO
HEARTBEAT
Atitesting.com eBook Chapter 28
• Is there a P wave for every QRS and vice versa, a QRS for every P wave?
Bundle Branch Blocks (BBB)
VENTRICULAR
ARRHYTHMIAS
Premature Ventricular Complex (PVC)
Ventricular Tachycardia (V-tach, VT)
Ventricular Fibrillation (V-fib, VF)
BBB
Delay or defect in the right or left bundle
branches (conduction system within the
ventricles)
Extra R or notched R
Wide S or depressed T
QRS is widened
PVCS
Impulse that originates in the
ventricles!
Wide & Bizaar
P wave: typically “hidden” or
absent
Rate: variable
Rhythm: regular
Treat underlying cause
MATCH TERM WITH PVC
DESCRIPTOR
Multifocal
Trigeminy
Couplets
Bigeminy
R on T
Triplets
V-TACH (VT)
Amiodarone Video
TORSADES DE POINTES
V-FIB (VF)
WHEN TO TREAT ARRHYTMIAS
TREAT
ARRHYTHMIAS THAT
ARE HIGH RISK FOR
COMPLICATIONS
TREAT
UNDERLYING
CAUSES if know
TREAT
“SYMPTOMATIC”
decreased cardiac
output
Cardiovert & Defib Guidelines
1.
External vs. internal
2.
Paddle/Pad placement
3.
Skin contact with conductive medium
4.
“All clear” – no one in contact with patient
5.
Box 17 – 6
Asystole
PEA
Code Blue Video