Vent Dysthy

Question 1

Vent Dysrhythmia results from?

Answer 1

no impulse generated from atria and/or AV jxn,

Vent myocard automaticity takes over

Question 2

Vent Dysrhy key features?

Answer 2

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

Question 3

Compensatory pauses are?

Answer 3

pause b/w early QRS and next QRS ->

post-pause QRS lines up w/ regular ryhthm

Question 4

Non-compensatory pauses are?

Answer 4

pause b/w early QRS and next QRS ->

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

Question 5

Premature Vent Complexes (PVC) are?

Answer 5

early ectopic impulse that interrupts normal vent rhythm,

originates from irritable focus in vent conduction system

Question 6

PVC findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

Answer 6

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

Question 7

Couplets are?

Indicate?

Answer 7

2 PVCs in a row

extremely irritable vents

Question 8

Interpolated PVCs are?

Answer 8

PVC b/w regular complexes,

do NOT disrupt normal cardiac cycle

Question 9

R-on-T PVCs are?

May precipitate?

Answer 9

PVC on/near previous T-wave

vent tachy or fib

Question 10

Idioventricular Rhythm is?

Answer 10

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

originates in vents

Question 11

Idiovent Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

Answer 11

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

Question 12

Accelerated Idiovent Rhythm is?

Answer 12

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

Question 13

Accel Idiovent Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

Answer 13

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

Question 14

Vent Tachy is?

Seen when?

Burst is?

Sustained is?

Answer 14

100-250 bmp originating from vents

3 or more PVCs in a row

brief episode of tachy < 6 complexes

> 6 complexes

Question 15

Vent Tachy findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

Answer 15

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

Question 16

Monomorphic Vent Tachy is?

Polymorphic?

Answer 16

each QRS is similar

appearance varies for ea QRS

Question 17

Torsades de Pointes is?

Answer 17

polymorphic vent tachy

looks like twisted streamer

Question 18

Torsades de Pointes (P) caused by?

Answer 18

drugs

electrolyte abnormalities

Question 19

Torsades de Pointes management?

Answer 19

If pt is NOT in cardiac arrest, Mg Sulfate

If IS in cardiac arrest, defib

Question 20

Vent Fibrillation is?

Answer 20

result of chaotic firing of multiple foci in vents,

causes heart to quiver -> no CO

Question 21

Vent Fib findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

Answer 21

Rate = 300 - 500

Rhyth = chaotic

P-wave =absent

PR Interval = absent

QRS = wavy/chaotic

QT Interval = absent

Question 22

Asystole EKG finding?

Answer 22

flatline

Question 23

Pulseless Electrical Activity (PEA) is?

Answer 23

organized electrical rhythm on EKG,

pt has NO PULSE OR RESPIRATION