Pulmonary Function Tests in Clinical Practice by Ali Altalag Pearce Wilcox & Jeremy Road

Author:Ali Altalag, Pearce Wilcox & Jeremy Road
Language: eng
Format: epub
Publisher: Springer London, London

Interpretation: Applying Henderson equation:

So, the equation indicates that the values are incorrect. Repeat ABG sampling is advised or check with the lab to ensure accurate calculation of HCO3 and recording of results.

Case 8

A 68-year-old man known to have COPD presented to the emergency department with increasing cough. His ABG showed pH (7.34), P aCO2 (60), P aO2 (60), HCO3 (31), AG (11). What is the acid–base disturbance? What is the A−a gradient provided that the patient was on room air, at sea level?

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