Vent Dysthy Flashcards Preview

Q3 ECG test 1 > Vent Dysthy > Flashcards

Flashcards in Vent Dysthy Deck (23)
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1
Q

Vent Dysrhythmia results from?

A

no impulse generated from atria and/or AV jxn,

Vent myocard automaticity takes over

2
Q

Vent Dysrhy key features?

A

Wide/bizarre QRS,
T-wave opposite of R-wave,
Φ P-wave

3
Q

Compensatory pauses are?

A

pause b/w early QRS and next QRS ->

post-pause QRS lines up w/ regular ryhthm

4
Q

Non-compensatory pauses are?

A

pause b/w early QRS and next QRS ->

post-pause QRS does NOT line up w/ regular ryhthm

5
Q

Premature Vent Complexes (PVC) are?

A

early ectopic impulse that interrupts normal vent rhythm,

originates from irritable focus in vent conduction system

6
Q

PVC findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

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

7
Q

Couplets are?

Indicate?

A

2 PVCs in a row

extremely irritable vents

8
Q

Interpolated PVCs are?

A

PVC b/w regular complexes,

do NOT disrupt normal cardiac cycle

9
Q

R-on-T PVCs are?

May precipitate?

A

PVC on/near previous T-wave

vent tachy or fib

10
Q

Idioventricular Rhythm is?

A

slow (20-40 bpm) w/ wide QRS,

originates in vents

11
Q

Idiovent Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

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

12
Q

Accelerated Idiovent Rhythm is?

A

rhythm that exceeds normal rate of vents (40 -100)

13
Q

Accel Idiovent Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

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

14
Q

Vent Tachy is?

Seen when?

Burst is?

Sustained is?

A

100-250 bmp originating from vents

3 or more PVCs in a row

brief episode of tachy < 6 complexes

> 6 complexes

15
Q

Vent Tachy findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

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

16
Q

Monomorphic Vent Tachy is?

Polymorphic?

A

each QRS is similar

appearance varies for ea QRS

17
Q

Torsades de Pointes is?

A

polymorphic vent tachy

looks like twisted streamer

18
Q

Torsades de Pointes (P) caused by?

A

drugs

electrolyte abnormalities

19
Q

Torsades de Pointes management?

A

If pt is NOT in cardiac arrest, Mg Sulfate

If IS in cardiac arrest, defib

20
Q

Vent Fibrillation is?

A

result of chaotic firing of multiple foci in vents,

causes heart to quiver -> no CO

21
Q

Vent Fib findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = 300 - 500

Rhyth = chaotic

P-wave =absent

PR Interval = absent

QRS = wavy/chaotic

QT Interval = absent

22
Q

Asystole EKG finding?

A

flatline

23
Q

Pulseless Electrical Activity (PEA) is?

A

organized electrical rhythm on EKG,

pt has NO PULSE OR RESPIRATION