Hypoxia Flashcards
0
Q
What is hypoxaemia characterises by?
A
Low PaO2 and SaO2
1
Q
What are the 4 types of hypoxia?
A
Hypoxaenia
Anaemia
Stagnant hypoxia
Histoxicity
2
Q
What characterises anaemia?
A
Normal PaO2 and SaO2 but little haemoglobin
Often with fewer RBC
3
Q
Risk factors of anaemia
A
Demographic- old, teen, female, immigrant
Diet- low iron, low vit c, excess tea/coffee
Social/physical- poverty, depression, alcohol
4
Q
What characterises is ischaemic hypoxia?
A
Normal PaO2 and SaO2 and haemoglobin but low blood flow
5
Q
What causes stroke
A
Sudden reduction in blood flow or inter cranial bleeding (rare)
Thrombosis
Embolism
Atherosclerosis
6
Q
What characterises histotoxicity?
A
Normal PaO2, SaO2, haemoglobin and blood flow but inability of tissue to use O2
