Arterial Blood Gas Analysis Interpretation
Kaufman md chief section of pulmonary critical care sleep medicine bridgeport hospital yale new haven health assistant clinical professor yale university school of medicine section of pulmonary critical care medicine introduction.
Arterial blood gas analysis interpretation. Upon arterial blood gas abg interpretation analysis you could come to know 1 oxygenation of blood through gas exchange in the lungs. From this baseline you can then begin to recognise significant variations in a patient s results which could indicate clinical deterioration. Bijapur mb kudligi na asma s. The most important points when assessing a patient are the history examination and basic observations.
See whether ph is within normal range or not. Following are the steps one should follow when reading the arterial blood gas and interpreting the values simultaneously. Castro d keenaghan m. Central venous blood gas analysis.
When interpreting arterial blood gas abg results it is essential to know what abg values are considered normal. An alternative to arterial blood gas analysis for ph pco2 bicarbonate sodium potassium and chloride in the intensive care unit patients. An arterial blood gas or abg for short is a test that measures the blood levels of oxygen pao2 carbon dioxide paco2 and acid base balance ph in the body the test results are used by medical professionals to assess how well oxygen is being distributed throughout the body and how well carbon dioxide is being removed. Investigations such as arterial blood gases.
Interpreting an arterial blood gas abg is a crucial skill for physicians nurses respiratory. If normal the blood gas is compensated or not. Blood is most commonly drawn from the radial artery because it is easily accessible can be compressed to control bleeding and has less risk for vascular occlusion the selection of which radial artery to draw from is based on the outcome of an allen. Indian j crit care med.
Interpretation of arterial blood gases abgs david a. Approach to interpretation of abg. It explains each component in turn followed by clinical examples to work through. 3 acid base balance or imbalance in extra cellular fluid ecf.
We ve created this guide which aims to provide a structured approach to abg interpretation whilst also increasing your understanding of each result s relevance. Arterial blood gas abg interpretation for medical students osces and mrcp paces this section presents how to interpret arterial blood gases. If it outside range then it is uncompensated or partially compensated. Arterial blood for blood gas analysis is usually drawn by a respiratory therapist and sometimes a phlebotomist a nurse a paramedic or a doctor.
Arterial blood gas abg interpretation is something that can be difficult to grasp initially we ve been there.