Normal Arterial Blood Gas Analysis

Normal arterial blood gas analysis. How to draw an abg. 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. Blood can be drawn via an arterial stick from the wrist groin or above the elbow. The radial artery on the wrist is most commonly used to obtain the sample.

Your red blood cells transport oxygen and carbon dioxide throughout your body. From this baseline you can then begin to recognise significant variations in a patient s results which could indicate clinical deterioration. It is an essential part of diagnosing and managing a patient s oxygenation status and acid base balance. Arterial catheters are used for measuring blood pressure directly and to collect blood samples for blood gas analysis particularly if repeated samples are likely to be required.

Some abg results also show hemoglobin and serum electrolyte values. Arterial blood gas analysis is used to measure the ph and the partial pressures of oxygen and carbon dioxide in arterial blood. Arterial blood gas test normal values shows values for ph oxygen carbon dioxide bicarbonates lactic acid levels and oxygen saturation. The test is commonly known as a blood gas analysis or arterial blood gas abg test.

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. Note that these may vary slightly between analysers. When interpreting arterial blood gas abg results it is essential to know what abg values are considered normal. Arterial blood for blood gas analysis is usually drawn by a respiratory therapist and sometimes a phlebotomist a nurse a paramedic or a doctor.

Be sure to know the normal ranges and units for the analyser you will be using. Arterial blood gas is usually advised to patients suffering from respiratory illnesses or under critical care. Normal values for arterial blood gas abg normal values are given below. The commonly used artery for both these procedures is the dorsal metatarsal artery but the femoral auricular radial brachial and coccygeal arteries can also be used.

Arterial blood gas analysis abg is a test that measures the amount of oxygen o2 and carbon dioxide co2 in the blood as well as the acidity ph of the blood.