Hemodynamics (A+ Graded already)

What is the cardiac index formula? correct answers Cardiac index equals cardiac output divided by body surface area (CI=CO/BSA) What is a normal range of cardiac index? correct answers 2.4 to 4.0 What does hemodynamics measure? correct answers Pressure volume and flow of blood Hemodynamic devices have some capacity to assess what? correct answers Preload, afterload, contractility, and cardiac output How is hemodynamics measured at the most basic level? correct answers By taking the blood pressure, heart rate, and urine output The amount of blood pumped by the heart each minutes correct answers Cardiac output What is the formula used to derive cardiac output? correct answers CO equals heart rate times SV (CO/BSA) What is the normal range of cardiac output? correct answers 4-8L/minute What is a more accurate hemodynamic indicator of cardiac output because it relates to the patient's body size and is more meaningful? correct answers Cardiac index What is the heart rate dictated by? correct answers The hearts pacemaker sites, with influence from the sympathetic and parasympathetic nervous system's How does hearts rate compensates for changes in cardiac output? correct answers By speeding up or slowing down Anything that decreases heart rate, such as certain drugs like beta adrenergic or calcium channel blockers, or heart dysrhythmias, heart block, affect cardiac output how? correct answers By decreasing cardiac output How does severe tachycardia reduced cardiac output? correct answers By shortening ventricular filling time during Diastole, which prevents sufficient blood volume from entering the ventricles before systole, and causing a decrease in stroke volume What is the amount of blood ejected by each heartbeat, and is not readily measurable using simple hemodynamic technology; it is the second determining of cardiac output correct answers Stroke volume, SV What factors influence stroke volume correct answers Preload, afterload, and contractility