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Lung India Official publication of Indian Chest Society  
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Year : 2017  |  Volume : 34  |  Issue : 2  |  Page : 220  

Erratum: Mechanisms of hypoxemia

Date of Web Publication1-Mar-2017

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Read associated Review Article: Mechanisms of hypoxemia with this article

DOI: 10.4103/0970-2113.201292

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How to cite this article:
. Erratum: Mechanisms of hypoxemia. Lung India 2017;34:220

How to cite this URL:
. Erratum: Mechanisms of hypoxemia. Lung India [serial online] 2017 [cited 2017 Nov 24];34:220. Available from: http://www.lungindia.com/text.asp?2017/34/2/220/201292

In the article titled, “Mechanisms of hypoxemia” published in pages 47-60, issue 1, vol. 34 of Lung India [1], the paragraph under the sub-heading “The arterial/alveolar oxygen tension ratio (a-A oxygen tension ratio)” on page no. 58 is written incorrectly. The correct paragraph should appear as following:

“A 65-year-old patients of COPD presented in the emergency with acute exacerbation. His ABGs is showing a PaO2 of 40 mmHg and a PaCO2 of 55 mmHg on FiO2 28%. What should be the FiO2 to raise PaO2 to 60 mmHg?

PAO2 = FiO2 (PB − PH 2O) − PaCO2/R.

=0.28 (760 − 47) − 55/0.8.


PaO2/PAO2 = 40/131 = 0.30.

60/New PAO2 =0.30

Required FiO2 = 0.37 or 37%.”

   References Top

Sarkar M, Niranjan N, Banyal PK. Mechanisms of hypoxemia. Lung India 2017;34:47-60.  Back to cited text no. 1
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