When interpreting arterial blood gas abg results, it is essential to know what abg values are considered normal. Abg interpretation free download as powerpoint presentation. Interpretation of the arterial blood gas selflearning packet see swift for list of qualifying boards for continuing education hours. Interpretation of arterial blood gases is an essence of critical care. Woodruff, msn, rnbc, cns, cmsrn, cen 6 easy steps to. Interpreting abgs arterial blood gases made easy ausmed. Its worth mentioning that it is possible to have a mixed acidosis or alkalosis. Abg quick interpretation parameter acidosis normal alkalosis reflects ph 7.
From this baseline, you can then begin to recognise significant variations in a patients results, which could indicate clinical deterioration. Arterial blood gas analysis is an essential part of diagnosing and managing a patients oxygenation status and acidbase balance. Abgs made easy for nurses w tic tac toe method for. Possible dialysis to remove excess lactate, manipulation of ventilation settings to adjust co 2 levels, but always maintaining tissue perfusion.
Arterial blood gases abg results reflect underlying pathology and interpretation of the results are often compounded by ongoing disease processes and clinical interventions. However, practice and experience will ease the frustration. Po2 can be thought of as the driving force for o2 molecules to bind to hb. Continuous regular abg monitoring and recording for trends. The usefulness of this diagnostic tool is dependent. Mixed venous gases measures oxygen left in the blood as it returns to the heart right side after it has been pumped. For this second edition of arterial blood gases made easy we have remained true to our. They are suitable for all patients needing a known concentration of oxygen, but 24% and 28% venturi masks are particularly suited to those at risk of carbon dioxide retention e. Venturi masks are available in the following concentrations. Body will not overcompensate when it comes to acidbase balance so. Most doctors struggle with arterial blood gas abg interpretation. What this means is that water h2o can combine with co2 and form carbonic acid. Partially compensated, or combined abg problems biology chegg tutors.
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