[respiratory failure]: Flashcards
hypoxia (PaO2
PaCO2
PaO2
4.7-6 kPa
> 10.6 kPa
PaO2 6 kPa
PaO2 6 kPa
the level of blood O2 and CO2
ventilation e.g. oedema/asthma -
reduced perfusion e.g. PE blocking blood flow
ventilation perfusion mismatch
alveolar hypoventilation (+- V/Q mismatch)
type 2 (alveolar hypoventilation)
diaphragmatic palsy
myasthenia gravis
Guillian barre
cord lesion
COPD pulmonary fibrosis obstructive sleep apnoea asthma pneumonia
Pneumonia PE pulmonary oedema ARDS emphysema pulmonary fibrosis
Pneumonia PE pulmonary oedema ARDS emphysema pulmonary fibrosis
type 2 (hypoventilation)
type 2 (hypoventilation)
both coronal and sagittal abnormal curvatures of the spine
both coronal and sagittal abnormal curvatures of the spine
type 2
type 2
dyspnoea
cynanosis (central)
confused
agitation
polycythaemia
cor pulmonale
pulmonary hypertension
peripheral vasodilation headache bounding pulse tachycardia co2 retention flap confusion papilloedema
if febrile
type 2
insensitive to CO2
respiration driven by hypoxia
lack of respiratory drive
insensitive to CO2
respiration driven by hypoxia
lack of respiratory drive
60% O2 mask
controlled 24% O2 therapy
treat underlying cause
controlled 24% O2 therapy
treat underlying cause
hypoventilation results in an inability to excrete CO2
every 20 mins
a rise in CO2 of >=1.5kPa following 24 % O2 therapy
still hypoxic
CO2 steady or lower
CO2 steady or lower
94-98%
88-92%
venturi
non-rebreathe
non-rebreathe
