Respiratory failure Flashcards
1
Q
Pathophysiology type I
A
- inadequate gas exchange
- hypoxia
-paO2 <8kpa - primary cause is V/ Q mismatch
2
Q
What can cause v/q mismatch
A
pneumonia, PE, pulmonary odema, asthma
3
Q
Investigations for resp failure
A
FBC, u&e, ABG, CRP
CXR
sputum and blood culture
spirometry
4
Q
Management of type 1 resp failure
A
O2 20-40% by facemask
Assisted ventilation
5
Q
History for resp failure
A
hypoxia- confusion, agitation, cyanosis, dyspnoea
hypercapnia- headache, coma , flap, tachy, bounding pulse
6
Q
Type II resp failure pathophysiology
A
Hypoxia <8kpa + hypercapnia >6 kpa
caused by alveolar hypoventilation
7
Q
What causes alevolar hypoventilation
A
asthma, copd, pneumonia, CNS tumour, trauma, GB, myasthenia gravis
8
Q
Management of type II resp failure
A
24% O2 the check ABG if CO2 has gone down increase o2 to 28% if not then look at assisted ventilation
