What is the role of pulse oximetry readings and arterial blood gas (ABG) measurements in the management of croup?

Updated: Oct 09, 2019
  • Author: Germaine L Defendi, MD, MS, FAAP; Chief Editor: Russell W Steele, MD  more...
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Pulse oximetry readings are within the normal reference range for most patients; however, this monitoring is helpful to assess for the need for supplemental oxygen support and to monitor for worsening respiratory compromise as evident with tachypnea and poor maintenance of oxygen saturations. Arterial blood gas (ABG) measurements are unnecessary and do not reveal hypoxia or hypercarbia, unless respiratory fatigue ensues.

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