334-CH 1 (Overview of Hemodynamics Parameters) Flashcards
Arterial Oxygen Tension
Partial pressure of oxygen dissolved in the arterial blood
Alveolar-Arterial Oxygen Tension Difference
Partial pressure difference between oxygen in the alveoli and oxygen in arterial blood
Arterial Oxygen Saturation
Percent of hemoglobin in arterial blood saturated with oxygen
Arterial Oxygen Content
Total amount of oxygen in arterial blood
Fraction of Inspired Oxygen
Fraction of oxygen in inspired
Alveolar Oxygen Tension
Partial pressure of oxygen in alveoli
Arterial Hydrogen Ion Concentration
Index of acidity or alkalinity of arterial blood
Mixed Venous Carbon Dioxide Tension
Partial pressure of carbon dioxide in mixed venous blood
Arterio-(mixed) venous oxygen content difference
Difference between arterial and mixed venous oxygen contents
Arterio-(mixed) venous oxygen tension difference
Difference between arterial and mixed venous oxygen tensions
Aortic Diastolic Pressure
Diastolic BP measured at root of aorta
Systolic Blood Pressure
Systemic arterial pressure during systole
Central Venous Pressure
Mean blood pressure in central veins and right atrium
Left Atrial Pressure
Mean blood pressure in left atrium
Left Ventricular End-Diastolic Pressure
Pressure in left ventricle at end diastole
Mean Pulmonary Artery Pressure
Time averaged pulmonary artery pressure
Pulmonary Artery Wedge Pressure
Mean blood pressure in the pulmonary capillaries
Pulse Pressure
Difference in arterial blood pressure between systolic and diastolic
Right Ventricular End Systolic Pressure
Blood pressure in right ventricle at end systole
Right Atrial Pressure
Mean pressure in right atrium
Afterload
Total force opposing ventricular ejection
Preload
Myocardial fiber length at end diastole
Contractility
Force of ventricle contraction independent of preload or afterload
Stroke Volume
Amount of blood ejected by either ventricle per contraction
Cardiac Output
Amount of blood pumped by the heart per minute
Cardiac Index
Cardiac output expressed per body surface area