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Chronic respiratory failure 

Chronic respiratory failure

Chapter:
Chronic respiratory failure
Author(s):

P.M.A. Calverley

DOI:
10.1093/med/9780199204854.003.1815

May 30, 2013: This chapter has been re-evaluated and remains up-to-date. No changes have been necessary.

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date: 22 July 2017

Chronic respiratory failure describes a clinical state when the arterial Po2 breathing air is less than 8.0 kPa, which may or may not be associated with hypercapnia (defined as Pco2 more than 6.0 kPa (45 mmHg)). Four processes cause arterial hypoxaemia due to inefficient pulmonary gas exchange—ventilation–perfusion (...

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