What is the role of pulse oximetry in the diagnosis of Pneumocystis jiroveci pneumonia (PJP)?

Updated: Apr 24, 2019
  • Author: Shelley A Gilroy, MD, FACP, FIDSA; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Pulse oximetry on room air should be measured in all patients. The oxygen saturation should be measured both at rest and with exertion. If any hypoxemia is found (O2 saturation < 90%), then an arterial blood gas (ABG) level should be obtained to evaluate the need for possible adjunctive corticosteroids.

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