Hemodynamics #1 Flashcards Preview

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Flashcards in Hemodynamics #1 Deck (15)
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0
Q

LCX Cercumflex feeds

A

Lateral wall

L-Dominant: posterior wall / AV node (10%)

1
Q

LAD supplies

A

LV anterior wall
LV anterior 2/3 of septum
-RBB, L Anterior fascicles of LBB
Papillary muscle

2
Q

RCA => PDA (as it comes around of back) supplies?

A
  • SA node (SA nodal artery)
  • RV
  • AV node (marginal artery)
  • LV posterior wall
  • LV inferior wall
3
Q

L posterior fascicles of LBB has three supplies:

A

1 from LAD

2 from RCA

4
Q

Hemiblock

A

Left anterior fascicular block
More common that posterior block
Characterized by L axis deviation

5
Q

RBB

A

S-wave: I, V5, V6

Qrs duration > 0.12

6
Q

LBB

A

S-Wave: V1, V2 (negative)
R-Wave: V5, V6 (positive)
QRS >0.12
-paradoxical splitting of S2 (split on expiration, not inspiration)

7
Q

Coronary perfusion Pressure calculation

A

CPP= arterial diastolic pressure - wedge pressure

8
Q

ST depression/elevation, T-wave inversion, Q-wave

A

ST depression: subendocardial injury
ST elevation: transmural injury
T-wave inversion: early injury
Q-wave: infarcted tissue

9
Q

L Main Occlusion

A

Lateral, anterioseptal AMI

10
Q

Q-Wave characteristics

A

Small Q wave normal in lateral leads

Path:
Duration > 0.04 (1 small box)
1/3 amplitude if QRS

11
Q

Posterior wall MI reciprocal change & V-leads/placement

A

Reciprocal: V1, V2, V3, V4

V7: posterior auxiliary line
V8: mid-scapular
V9: Peri-Spinal

12
Q

12-lead heart sections

A
Inferior: II, III, aVF
Septal: V1, V2
Anterior: V3, V4
Lateral: I, aVL, V5, V6
RV: V1R -V6R
13
Q

Typical Reciprocal change w/ anterior lateral AMI

A

II, III, aVF

14
Q

Typical Reciprocal change w/ inferior & posterior

A

Inferior: V1, V2, V3 or I, aVL
Posterior: V1, V2