Question

Coronary Perfusion Pressure = what minus what?

a) CPP = Diastolic blood pressure - End-diastolic left ventricular pressure
b) CPP = Systolic blood pressure - Central venous pressure
c) CPP = Aortic pressure - Pulmonary artery pressure
d) CPP = Mean arterial pressure - Right atrial pressure

Answer 1

The correct formula for Coronary Perfusion Pressure (CPP) is CPP = Mean arterial pressure - Right atrial pressure. This formula represents the pressure gradient driving blood flow to the coronary arteries, ensuring adequate oxygen supply to the heart muscle. The answer is d) CPP = Mean arterial pressure - Right atrial pressure.

Step-by-step explanation:

The correct formula for Coronary Perfusion Pressure (CPP) is CPP = Mean arterial pressure - Right atrial pressure. Coronary Perfusion Pressure is the pressure gradient that drives blood flow to the coronary arteries, ensuring adequate oxygen delivery to the heart muscle. The mean arterial pressure (MAP) represents the average pressure in the arteries during a cardiac cycle, and subtracting the right atrial pressure from this value gives an approximation of the pressure driving coronary blood flow.

Options a, b, and c are not accurate representations of the formula for Coronary Perfusion Pressure and do not reflect the physiological parameters involved in coronary blood flow.