RCIS Flashcards
O2 Saturation
O2 Content/O2 Capacity x 100%
O2 capacity
1.36 x Hgb
O2 Content
1.36 x Hgb x O2 sat/100
Room air
21%
The actual amount of O2 carried in the blood (volume %/mL/L) is defined as the oxygen _______.
Content
Which RT heart O2 Sat is normally the highest?
IVC
CO
CO= HR x SV
Normal BSA range
1.5-2.0 M2
Normal O2 Content of blood in the LEFT HEART
18-22 vol % or 180-220 ml/L
O2 saturation is defined as:
O2 content/O2 capacity x 100%
BSA constant
135
What is preload?
The amount of blood filling the ventricles
What is after load?
The amount of resistance
4 factors affecting the amount of blood that is pumped each minute? CO
1 HR
2 Preload: amount of bld filling vent.
3 Afterload: amount of resistance
4 Contractility: squeezing ability of vent
What’s the ejection of blood from the VENTRICLES referred to as?
Systole