Cardiology


Cardiac Output (CO) = Stroke Volume (SV) x Heart Rate (HR) = Systemic Vascular Resistance (SVR) / Mean Arterial Pressure (MAP)
Normal male = 5.6 L/min; normal female = 4.9 L/min

Cardiac Index (CI) = CO / Total Body Surface Area (TBSA)
Normal = 2.6-4.2 L/min m2

Delivery of Oxygen (DO2) = [(1.39 x Hb x SaO2) + (0.003 x PaO2)] x CO (mL/min)

Bathmotropy = myocyte excitability
Inotropy = contractability
Chronotropy = ability to initiate electrical impulse
Dromotropy = ability to conduct electrical impulse
Lusitropy = ability of muscle to relax

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