Test 1 Flashcards
Left Atrium
Left circumflex Artery
Right Atrium
Right coronary Artery (RCA)
Right Vent.
- anterior
- posterior
- right coronary
- right coronary (PDA)
Left ventricle:
- diaphragmatic (inferior)
- Anterior
- Lateral
- Apex
- left circumflex and right coronary (PDA)
- LAD and Left Circ.
- Left circ
- LAD
Inter ventricular septum:
- Anterior
- Posterior
- LAD
- Right coronary (PDA)
Left Vent. papillary muscles:
- Anterior
- Posterior
- LAD & Left circ.
- Left circ. & Right coronary (PDA)
SA Node
RIght Coronary
Atrial Internodal Pathways
Right coronary
AV Node
Right Coronary
Bundle of HIS
Right Coronary
Right Bundle Branch
LAD
Left Bundle Branch
- Anterior
- posterior
LAD
MAP
CO X TPR
Cardiac output
SV x HR
Normal 4-8 L/MIN
Arteriolar diameter is also called?
Systemic Vascular Resistance
What contributes to
Total peripheral resistance
Arteriolar diameter and blood viscosity
BSA
Average for 70kg Man
1.73m^2
LVEDP (preload)
Average 120ml
Volume in the left ventricle at end of vent diastole available for ejection
Left Vent. stroke Volume (LVSV)
60-100ml/beat
Left vent Ejection Fraction
LVEF= LVSV/LVEDV
Normal: 55-65%
THE PERCENTAGE of preload volume ejected with systole
Left Vent. End systolic volume
LVESV= LVEDV- LVSV
amount left in ventricle after left vent contraction
LV afterload
Total peripheral resistance
- SVR and
- blood viscosity
Right Atrial Pressure
Normal 2-8 mmHg or 2-6cm h2o
CVP
Pressure in venacava just before joining with right Atrium
-Normal 2-8 mmHg or 2-6 cm h20
Cardiac index
Cardiac output correlated with BSA
CI= CO/BSA
Normal- 2.5-4 L/ MIN
Systemic Blood Pressure
BP= CO x AFTERLOAD
Normal 100-120 / 60-80
Pulse Pressure
Difference between SBP and DBP
PP= SBP-DBP
NORMAL- 40 mmHg
Mean Arterial Pressure
MAP= SBP-DBP/ 3 + DBP. Or
1/3(PP) + DBP
NORMAL: 70-105
SVR
Major part of afterload that has to be overcome to eject blood from LV
SVR= (MAP-RAP)/ CO x 80
NORMAL: 800-1200 dynes/sec/cm2 or Dynes x sec-1x cm-5
SVR index
SVRI= (MAP-RAP)/ CI x 80
- number will be larger than SVR
1970-2400 dynes/cm5/m2 or dynes x sec-1x cm-5/m-2
Pulm Art Pressure
PAP= RVOx PVR
Normal 15-30/ 8-15 mmHg
PAWP or PAOP
Determines pressure of the pulm artery distal to the occlusion on the Swan shows left atrial pressure and with normal Mitral it approximates left vent pressure/preload
Normal: 8-15
Mean Pulm art Pressure
MPAP= SPAP-DPAP/ 3 + DPAP
Normal: 10-20
Pulmonary vascular resistance
PVR= (MPAP-PAWP)/CO x 80
Normal 37-250 dynes/ sec/cm5
- pressure to be overcome by the right ventricle
Pulm Vasc Resistance Index
PVRI= (MPAP- PAWP) / CI x 80
Normal: 180-285
Inferior MI
II, III, AVF
RCA
Anterior MI
V3, V4, V5
Left coronary artery
Lateral MI
I, AvL, V5,V6
Circumflex
Posterior MI
V1, V2
ST depression
RCA or CIRCUMFLEX
Anteroseptal
V1, V2, V3, V4
LAD
Anterolateral
I, AvL, V4, V5, V6
LAD, CIRCUMFLEX
