Vent Dysthy Flashcards
Vent Dysrhythmia results from?
no impulse generated from atria and/or AV jxn,
Vent myocard automaticity takes over
Vent Dysrhy key features?
Wide/bizarre QRS,
T-wave opposite of R-wave,
Φ P-wave
Compensatory pauses are?
pause b/w early QRS and next QRS ->
post-pause QRS lines up w/ regular ryhthm
Non-compensatory pauses are?
pause b/w early QRS and next QRS ->
post-pause QRS does NOT line up w/ regular ryhthm
Premature Vent Complexes (PVC) are?
early ectopic impulse that interrupts normal vent rhythm,
originates from irritable focus in vent conduction system
PVC findings:
Rate?
Rhyth?
P-wave?
PR Interval?
QRS?
QT Interval?
Rate = depends on rhythm
Rhyth = irregular
P-wave = absent or unrelated to QRS
PR Interval = absent
QRS = wide/bizarre, T-wave opp of R-wave
QT Interval = long
Couplets are?
Indicate?
2 PVCs in a row
extremely irritable vents
Interpolated PVCs are?
PVC b/w regular complexes,
do NOT disrupt normal cardiac cycle
R-on-T PVCs are?
May precipitate?
PVC on/near previous T-wave
vent tachy or fib
Idioventricular Rhythm is?
slow (20-40 bpm) w/ wide QRS,
originates in vents
Idiovent Rhythm findings:
Rate?
Rhyth?
P-wave?
PR Interval?
QRS?
QT Interval?
Rate = 20-40
Rhyth = regular
P-wave =absent or unrelated to QRS
PR Interval = absent
QRS = wide/bizarre, T-wave opp of R-wave
QT Interval = long
Accelerated Idiovent Rhythm is?
rhythm that exceeds normal rate of vents (40 -100)
Accel Idiovent Rhythm findings:
Rate?
Rhyth?
P-wave?
PR Interval?
QRS?
QT Interval?
Rate = 40-100
Rhyth = regular
P-wave =absent or unrelated to QRS
PR Interval = absent
QRS = wide/bizarre, T-wave opp of R-wave
QT Interval = long
Vent Tachy is?
Seen when?
Burst is?
Sustained is?
100-250 bmp originating from vents
3 or more PVCs in a row
brief episode of tachy < 6 complexes
> 6 complexes
Vent Tachy findings:
Rate?
Rhyth?
P-wave?
PR Interval?
QRS?
QT Interval?
Rate = 100 - 250
Rhyth = regular
P-wave =absent or unrelated to QRS
PR Interval = absent
QRS = wide/bizarre, T-wave opp of R-wave
QT Interval = unmeasurable
Monomorphic Vent Tachy is?
Polymorphic?
each QRS is similar
appearance varies for ea QRS
Torsades de Pointes is?
polymorphic vent tachy
looks like twisted streamer
Torsades de Pointes (P) caused by?
drugs
electrolyte abnormalities
Torsades de Pointes management?
If pt is NOT in cardiac arrest, Mg Sulfate
If IS in cardiac arrest, defib
Vent Fibrillation is?
result of chaotic firing of multiple foci in vents,
causes heart to quiver -> no CO
Vent Fib findings:
Rate?
Rhyth?
P-wave?
PR Interval?
QRS?
QT Interval?
Rate = 300 - 500
Rhyth = chaotic
P-wave =absent
PR Interval = absent
QRS = wavy/chaotic
QT Interval = absent
Asystole EKG finding?
flatline
Pulseless Electrical Activity (PEA) is?
organized electrical rhythm on EKG,
pt has NO PULSE OR RESPIRATION
