Hemodynamics Flashcards
CO (Cardiac Output)
4-8L per minute
- The amount of blood leaving the LV in one minute
CI (Cardiac Index)
- 2 - 4 L/Min/m2
- CO is individualized to patient by BSA
- A cardiodynamic measure based on the cardiac output
SV (Stroke Volume)
60-150mL per beat
- The amount of blood leaving the left ventricle each contraction
SI (Stroke Index)
30-65mL/beat
- Individualized to patient by BSA
PAOP (Pulmonary Artery Occlusion Pressure)
Wedge
6-12mmHg
- Pressure exerted by volume of blood left in Left Atrium at the end of diastole
CVP (Central Venous Pressure)
2-8mmHg
- The pressure exerted by the volume of blood left in the right heart at the end of diastole
RAP (Right Arterial Pressure)
2-8mmHg
- Used interchangeability with CVP (Central Venous Pressure), measured differently
RVEDV (Right Vent End-Diastolic Volume)
100-160mL
- SV/RVEF
- The amount of volume in the right ventricle at the end of diastole
MAP (Mean Arterial Pressure)
70-105mmHg
- SBP + 2(DBP)/3
- Measured by Art Line
SVR (Systemic Vascular Resistance)
800-1200
- dynes/sec/cm^−5
- The amount of force needed to open the aortic valve and move blood through the systemic vascular system
PVR (Pulmonary Vascular Resistance)
<250
- dynes/sec/cm^−5/m^2
- The amount of force needed to open the pulmonic valve and move blood through the pulmonary vascular system
LCWI (Left Cardiac Work Index)
40-70g-m*2/beat
- The amount of effort by the left ventricle to move blood each minute
- Estimated by SVI(MAP-PAWP) X 0.0136
SvO2
Mixed venous oxygen saturation
60-80%
- Measured in the Pulmonary Artery – systemic return
& myocardium return (thus a lower value)
ScvO2
Central venous oxygen saturation
70%
- Measured in the vena cava before the coronary sinus
returned myocardial blood
SaO2
95-100%
- Oxygen saturation in hemoglobin (arterial blood) to be
delivered to tissues
