ANESTHESIA EQUATIONS FOR ITE EXAM QUESTIONS AND ANSWERS

ANESTHESIA EQUATIONS FOR ITE
EXAM QUESTIONS AND ANSWERS

Mean Arterial Pressure (MAP) - Correct Answers -= DBP + (pulse pressure/3)
or
SBP + (2xDBP)/3

Cardiac Output (CO) - Correct Answers -= SV x HR

Normal CO value - Correct Answers -4-8 L/min

Cardiac Index (CI) - Correct Answers -= CO/BSA

Normal CI value - Correct Answers -2.5-4.2 L/min/m^2

Ejection Fraction (EF) - Correct Answers -= EDV-ESV/EDV
Approximating Arterial Oxygen Tension - Correct Answers -PaO2 = 102 - (Age/3)

Henry's Law (for calculating dissolved O2 in blood) - Correct Answers -Gas
Concentration = gas solubility coefficient x partial pressure

Total Oxygen delivery (DO2) - Correct Answers -= CaO2 x Qt [mL O2/min]

Arterial Oxygen content (Ca02) - Correct Answers -= (SaO2 x Hb x 1.34) + (PaO2 x
0.003)

Systemic Vascular Resistance (SVR) - Correct Answers -= 80 x (MAP - CVP)/CO

Normal SVR value - Correct Answers -900-1500 dyne/sec/cm^5

Systemic Vascular Resistance Index (SVRI) - Correct Answers -= SVR x BSA

Pulmonay Vascular Resistance - Correct Answers -= 80 x (mean PAP - PWP)/CO

Normal PVR value - Correct Answers -50-150 dyne/sec/cm^5

Pulmonay Vascular Resistance Index (PVRI) - Correct Answers -= PVR x BSA