Blood Gasses Flashcards
1
Q
What is SaO2
A
The amount of oxygen bound to hemoglobin (pulse ox)
2
Q
How to approximate SaO2 based off of pulse ox
A
SaO2 - 30 = PaO2
3
Q
What pulse oximeter reading indicates hypoxemia and what reading indicates cyanosis
A
Hypoxemia <90%
Cyanosis <85%
4
Q
In order for an animal to show signs of cyanosis, they need….
A
Hemoglobin <5g/dl
5
Q
What are three reasons a pulse oximeter would be unable to get an accurate reading. and what are two reasons a pulse ox reading would be loq
A
- Location
- Drugs (vasoconstrictors)
- Circulation
- Inadequate 02 deliver
- Inadequate 02 transfer
6
Q
What is a normal PaCO2 (dissolved CO2)
A
about 45mm Hg
7
Q
What is a normal ETCO2 (end tidal CO2)
A
35-45 mm Hg
8
Q
ETCO2 is usually close to…
A
PaCO2
9
Q
Term for abnormally high CO2 in the blood
A
Hypercapnic
10
Q
What does Hypercapnia stimulate
A
Increased respiratory rate
