Transport of gases Flashcards
1
Q
How is 98.5% of oxygen transported?
A
Attached to haemoglobin in RBC
2
Q
How is% of haemoglobin carrying oxygen measured?
A
An oxygen saturation
3
Q
How is remaining 1.5% of oxygen dissolved?
A
In plasma
4
Q
What is oxygen delivery dependent upon?
A
Presence of adequate RBC and haemoglobin
5
Q
What is hypoxia?
A
Lack of oxygen within body tissues
6
Q
What is hypoxaemia?
A
Lack of oxygen within arterial blood
7
Q
Where is 10% of carbon dioxide carried?
A
In plasma
8
Q
How much carbon dioxide is attached to haemoglobin?
A
30%
9
Q
Haemoglobin has a greater affinity for carbon dioxide than…
A
Oxygen
10
Q
What is hypercania?
A
Higher than normal level of carbon dioxide in the blood
11
Q
What happens to the amount of oxygen if you have hypercania?
A
Amount of oxygen binding to haemoglobin will be reduced
