Hypoxia Flashcards
0
Q
Name the 4 types of hypoxia?
A
- Hypoxic hypoxia
- Anaemic hypoxia
- Ischaemic hypoxia
- Histotoxic
1
Q
Define Hypoxia
A
Hypoxia is when there is lack of oxygen to tissues.
3 mins with out oxygen and brain damage is likely
2
Q
What is Hypoxic hypoxia?
A
The ability to take in oxygen is impaired eg altitude, enclosed compartment, gas filled atmosphere, asthma,
3
Q
What is Anaemic hypoxia?
A
Haemoglobin problem - oxygen carrying capacity of the blood is decreased.
4
Q
What is Ischaemic hypoxia?
A
Lack of blood flow, hence lack delivery of oxygenated blood to cells.
Could be due to trauma ie shock
5
Q
What is histotoxic hypoxia?
A
When a toxic substance interferes with the ability of tissues to use oxygen.
eg cyanide poisoning prevents cells from using oxygen
6
Q
Name 4 signs of hypoxia?
A
Signs
- Hyperventilation (tachypnoea)
- Cyanosis
- Confusion
- Muscular dysfunction
7
Q
Name 4 symptoms of hypoxia?
A
Symptoms
- Fatigue
- Headache
- Air hunger
- Sight impairment
