INTERVIEW Flashcards
S1
Tricuspid & mitral valve closing
S2
Pulmonic and aortic valve closing
S3
CHF
Cardiac output determinants
Stroke volume & heart rate
CO=SV x HR
Cardiac index?
Normal values?
Ci= CO/BSA (body surface area)
2.5-4 L/min/m^2
Mean pulmonary artery pressure (pap) normal values?
16 mm Hg
Pulmonary artery systolic and diastolic
25/8
Pulmonary artery occlusion pressure (PAOP)
5-15 mm Hg
Where does the dista port of the PA catheter lie and how is this confirmed?
Pulmonary artery.
PA wave form and/or PAOP wave form
Mean arterial pressure (MAP)
[SBP x 2(DBP)]/3
Intra-aortic ballon pump (IABP)
- Decreases after load
- Decreases myocardial oxygen demand
- increases coronary perfusion
- limits size of infarcts/myocardial ischemia
Patient with cardiogenic shock or circulatory support
Sodium nitroprusside MOA:
Relaxes arterial/venous smooth muscle which decrease systemic vascular resistance AND preload
Sodium nitroprusside doses:
0.3-10 mcg/kg/min
What coronary artery would be occluded if STE was seen in leads II, III, and aVF
Right coronary
Why give morphine to MI patients?
Pain management and coronary vasodilation
Starling’s Law?
The greater the volume of blood entering the heart during diastole, the greater the volume of blood that will be ejected during systole
CVP monitoring: A Wave
Atrial contraction
CVP Monitoring: C wave
Tricuspid valve elevation during early ventricular contraction