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Flashcards in Other ECG Deck (20)
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1
Q

Pericarditis appears as what on ECG?

A

Upright/elevated T waves

Elevated/Flat or Concave ST seg in many leads (MI ST changes U in just a few leads)

2
Q

Pericarditis w/ effusion appears as what on ECG?

A

low voltage in all leads (fluid in way of signal)

(P) Electrical Alterans (if heart rotates in fluid) ->
QRS amp ∆s

3
Q

PE affects heart how?

A

Blocked pulm artery causes R heart failure

4
Q

Typical outward signs on PE?

A

sinus tachy

(P) distention of RA and RV

5
Q

PE appears as what on ECG?

A

SI Q3 T3:

Large S wave, lead I
Deep Q wave, lead III
Inverted T wave, lead III

6
Q

PE may also cause what other findings on ECG?

A

RAD
RAE signs: Tall/peak P in II, III, aVF
RBBB V1-3
Inverted T waves V1-4

7
Q

Long QT Syndrome is?

A

congenital delayed repol a/w vent dysrhy

(U) w/ exercise

(P) v fib, torsdes

8
Q

Short QT Synd is?

A

inherited

syncope, v arrhy, sudden death

9
Q

QTc Interval is?

A

“Corrected QT interval”

10
Q

HyperK+ appears as what on ECG? (5)

A

Tall/Peaked T waves, all leads

Flat P waves

1st° AV block

Wide QRS

Merged ST waves -> sine-wave pattern

11
Q

HypoK+ appears as what on ECG? (3)

A

U waves*

Flat T waves

ST seg depression

12
Q

HyperCa2+ appears as what on ECG?

A

↓ refractory period:

Short QT interval*
Short ST seg

↓ auto, slowed conduction:

Wide PR interval
Wide QRS
BBB
AV block

13
Q

HypoCa2+ appears as what on ECG?

A

Wide QT interval

(P) progression to v tachy/torsades

14
Q

Digoxin affects what electrolytes?

How?

A

Na+/Ca2+ during depol/repol

Slows Na+ into cell
Helps Ca2+ move out of cell

15
Q

Digoxin affects heart how?

A

↑ contract/pumping

↓ HR/AV conduct

16
Q

Therapeutic Digoxin causes what ∆s on ECG?

A

(slows SA and AV node conduction)

Short QT interval
Flat T waves
Asym ST depression/T wave inversion (slopes down to right) w/ tall R wave

17
Q

Toxic Digoxin causes what ∆s on ECG?

A

conduction block and/or tachy dysrhy
Most common = PAT w/ 2° AV block (2:1)

worse w/ hypoK+

18
Q

Wide QT intervals caused by what drugs?

A

Anti-arrhy (stop if QTI > 25% wider)
TCA
Phenothiazines
Erythromycin

19
Q

Hyopthermia appears as what on ECG?

A

All intervals prolonged
Arrhy (brady is common)

Osborne Waves:
ST seg elevation, abrupt ascent at J point, deep plunge

20
Q

Brugada Synd is?

A

auto dominant
young asains
sudden death from v fib or v tachy

Hx of arrhy, fainting

Tx: ICD

variable ST seg elevations