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Updated: Apr 2, 2026

Expired CO2 Measurement in Intubated or Spontaneously Breathing Patients from the Emergency Department
Published on: January 29, 2011
Interpreting Arterial Blood Gases Successfully
Abstract:
Arterial blood gas (ABG) analysis is a crucial skill for perioperative nurses, in particular the RN circulator. This article provides the physiological basis for assessing ABGs perioperatively and presents a systematic approach to blood gas analysis using the Romanski method. Blood gas sample data allow the reader to practice ABG interpretation. In addition, four case studies are presented that give the reader the opportunity to analyze ABGs within the context of surgical patient scenarios. The ability to accurately assess ABGs allows the perioperative nurse to assist surgical team members in restoring a patient's acid-base balance.
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