Respiratory failure

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  • Created by: SamDavies
  • Created on: 02-05-19 00:00
A type of respiratory failure where the individual has hypoxia (PaO2 <8kPa) but normal (or low) CO2 levels
Type one
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A type of respiratory failure where the individual has hypoxia and hypercapnia
Type two
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What is likely to occur when there is low PIO2, hypoventilation, diffusion impairment, ventilation-perfusion mismatching or a right-to-left shunt?
Hypoxia
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The one reason why hypercapnia would occur. (With hypoxia there can be normal levels of PCO2 because peripheral chemoreceptors will increase ventilation)
Hypoventilation
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The equation displayed by PACO2 directly proportional to VCO2/VA
Alveolar gas equation
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This occurs due to hypercapnia causing excess H+ and hypoxia resulting in the anaerobic respiration of lactic acid. The excess H+ bind with HCO3-, decreasing the [HCO3-].
Mixed acidosis
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A condition which causes type 2 respiratory failure due to difficulty in delivering air to the lower airways
Chronic bronchitis
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A condition which causes type 1 respiratory failure due to thickening of the diffusion barrier
Fibrosis
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Changes in starlings forces can increase the amount of this fluid which limits inflation of the lungs, resulting in hypoventilation (type 2) or V-Q mismatch (type 1)
Pleural fluid
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This condition means you are unable to generate distending pressures, possibly leading to respiratory failure
Muscular dystrophy
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An autoimmune disease which stops muscle from contracting properly, leading to respiratory failure in some cases
Myasthenia gravis
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A syndrome which causes the loss of movement and sensation due to a viral infection which can cause hypoventilation and possible type 2 respiratory failure
Guillain Barre
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This can cause difficulty breathing due to a loss of innervation to the diaphragm which can lead to type 2 respiratory failure
Spinal cord transection
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A CNS depressant drug class which can cause hypoventilation and type 2 respiratory failure
Barbiturates
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A scenario where oxygen therapy should not be used when treating hypoxemia
Shunt
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Other cards in this set

Card 2

Front

A type of respiratory failure where the individual has hypoxia and hypercapnia

Back

Type two

Card 3

Front

What is likely to occur when there is low PIO2, hypoventilation, diffusion impairment, ventilation-perfusion mismatching or a right-to-left shunt?

Back

Preview of the front of card 3

Card 4

Front

The one reason why hypercapnia would occur. (With hypoxia there can be normal levels of PCO2 because peripheral chemoreceptors will increase ventilation)

Back

Preview of the front of card 4

Card 5

Front

The equation displayed by PACO2 directly proportional to VCO2/VA

Back

Preview of the front of card 5
View more cards

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