Arterial blood gases — normal values

Purpose of this sheet: essential lab result interpretation landmarks a nurse or licensed practical nurse in Quebec should keep in mind for clinical practice and for succeeding on the OIIQ or OIIAQ entry exam. Exam relevance: The OIIQ expects critical reading of lab results and identification of values requiring immediate nursing action. — Clinical landmarks — pH: 7.35–7.45 pCO2: 35–45 mmHg pO2: 80–100 mmHg Bicarbonate: 22–26 mmol/L SaO2: 95–100 % Base excess: −2 to +2 Lactate:

Clinical content reviewed by Ducamelle Louis, Registered Nurse