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Q3 ECG test 1 > Atrial Dysrthy > Flashcards

Atrial Dysrthy Flashcards

1
Q

Atrial Dysrthy caused by? (3)

A

1) automaticity
2) triggered activity
3) reentry

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2
Q

Atrial Dys affects heart how?

A

↓ vent fill time

↓ atrial kick

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3
Q

Atrial Dys key ECG characteristics?

A

Abn P-waves
Adn PR Intervals
Narrow/normal QRS

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4
Q

Wandering Pacemaker is?

ECG appearance?

A

pacemaker site moves b/w SA/Atria/AV Jxn

Varying P-Waves, varying PR Intervals

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5
Q

Premature Atrial Complexes (PAC) are?

A

Early impulse origination outside of SA node

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6
Q

PAC ECG findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = depends on rhythm

Rhyth = irregular

P-wave = up/inverted, diff morphology

PR Interval = short/long/normal

QRS = normal

QT Interval = normal range

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7
Q

Noncompensatory Pause is?

A

Pause w/ < 2 full R-R Intervals b/w R-wave of normal beat preceding PAC and R-wave of 1st normal beat after PAC

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8
Q

Atrial Tachy is?

A

Fast atrial rate from single point that overrides SA Node

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9
Q

Atrial Tachy findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = 150 - 250

Rhyth = regular

P-wave = up/down/abn

PR Interval = short/normal/hidden

QRS = normal

QT Interval = normal range

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10
Q

Multifocal Atrial Tachy is?

ECG findings?

A

Atrial tachy w/ multiple foci of rate

(S) to Wandering PM but faster
Rate = 120 - 150 bpm
Rhyth = irreg
PR Int = vary

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11
Q

Supravent Tachy?

A

Includes parox SV tachy, nonparox atrial tachy, multifocal atrial tachy

Arises above vents but can’t identify if atrial or jxn’l because of unclear P-Waves

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12
Q

Atrial Flutter is?

A

SV tachy w/ single origin in atria

Atrial rate 250-350

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13
Q

Atrial Flutter findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate: Atrial = 250-350, Vent = any

Rhyth = any

P-wave = flutter waves

PR Interval = unmeasurable

QRS = normal

QT Interval = unmeasurable

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14
Q

Atrial Flutter: Vent Rate measured how?

A

AV impulse to Vent conduction ratio

e.g. 3:1

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15
Q

Atrial Fib is?

A

chaotic/asynch firing from multiple foci in atria,
Φ atrial kick -> ↓ CO

(P) development of atrial emboli (blood stagnates)

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16
Q

Atrial Fib findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate: Atrial >350, Vent = any

Rhyth = irregularly irregular

P-wave = absent; chaotic chaotic baseline

PR Interval = unmeasurable

QRS = normal

QT Interval = unmeasurable

17
Q

Jxnl Dysrhythmias originate where?

Key characteristic?

A

AV jxn (area around AV node/HIS)

P-wave: inverted/short PR int, buried in QRS, or follow QRS

18
Q

Premature Jxnl Complex is?

A

single, early impulse from AV jxn

19
Q

Premature Jxnl Complex findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = depends on rhythm

Rhyth = irreg

P-wave = inverted; before, during or after QRS

PR Interval = short

QRS = normal

QT Interval = normal

20
Q

Jxnl Escape Rhythm is?

A

impulse from single origin in AV jxn,

AV jxnl rate of 40-60 bpm

21
Q

Jxnl Escape Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = 40-60

Rhyth = regular

P-wave = inverted; before, during or after QRS

PR Interval = absent or short

QRS = normal

QT Interval = normal

22
Q

Accelerated Jxnl Rhythm is?

A

impulse from single origin in AV jxn,

AV jxnl rate of 60 -100 bmp

23
Q

Accelerated Jxnl Rhythm findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = 60-100

Rhyth =regular

P-wave = inverted; before, during or after QRS

PR Interval = absent or short

QRS = normal

QT Interval = normal

24
Q

Jxnl Tachy is?

A

impulse from single origin in HIS,

rate 100 -180 bpm

25
Q

Jxnl Tachy findings:

Rate?

Rhyth?

P-wave?

PR Interval?

QRS?

QT Interval?

A

Rate = 100 - 180

Rhyth =regular

P-wave = inverted; before, during or after QRS

PR Interval = absent or short

QRS = normal

QT Interval = normal

Q3 ECG test 1 (13 decks)

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