arterial blood gas


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Related to arterial blood gas: Venous Blood Gas

arterial blood gas

n.
The concentration of oxygen and carbon dioxide in the blood, whose partial pressures are measured along with other factors such as blood pH in order to assess oxygen saturation and other metabolic indicators in patients, especially those with respiratory disorders.

arterial blood gas (ABG)

the oxygen and carbon dioxide content of arterial blood, measured by various methods to assess the adequacy of ventilation and oxygenation and the acid-base status of the body. Oxygen saturation of hemoglobin is normally 95% or higher. The partial pressure of arterial oxygen, normally 80 to 100 mm Hg, is increased in hyperventilation and decreased in cardiac decompensation, chronic obstructive pulmonary disease, and certain neuromuscular disorders. The partial pressure of carbon dioxide, normally 35 to 45 mm Hg, may be higher in emphysema, chronic obstructive pulmonary disease, and reduced respiratory center function; it may be lower in pregnancy and in the presence of pulmonary emboli and anxiety.

arterial blood gas

Critical care Analysis of arterial blood for O2, CO2, bicarbonate content, and pH, which reflects the functional effectiveness of lung function and to monitor respiratory therapy Ref range pO2, 75-100 mm Hg; pCO2, 35-45 mm Hg; pH: 7.35-7.42, O2 content: 15-23%; O2 saturation, 94-100%; HCO3, 22-26 mEq/L. See Metabolic acidosis, Metabolic alkalosis, Respiratory acidosis, Respiratory alkalosis.

arterial blood gas

Abbreviation: ABG
Any of the gases present in blood. Operationally and clinically, ABGs include the determination of levels of pH, oxygen (O2), and carbon dioxide (CO2) in the blood. ABGs are important in the diagnosis and treatment of disturbances of acid-base balance, pulmonary disease, electrolyte balance, and oxygen delivery. Values of the gases themselves are usually expressed as the partial pressure of carbon dioxide or oxygen although derived values are reported in other units. Several other blood chemistry values are important in managing acid-base disturbances, including the levels of the bicarbonate ion (HCO3), blood pH, sodium, potassium, and chloride.
See also: gas
References in periodicals archive ?
The differences in oxygen saturation between the arterial blood gas and the forehead sensor appeared to increase as the oxygen saturation decreased.
On-line arterial blood gas analysis with optodes: current status.
Comparison of capillary and arterial blood gas measurements in neonates.
To determine the accuracy of the Masimo Blue sensor with this difficult patient population, researchers analyzed 45 arterial blood gas samples received from six cyanotic infants undergoing pulmonary artery banding procedures and compared pulse oximetry data with arterial blood samples analyzed by CO-Oximetry.
However, I wish to bring to notice the possibility of misinterpretation of oxygenation status in such patients, when using pulse oximetry and arterial blood gas analysis as measures of tissue oxygenation.
Blood work, a repeat spirometry, lung volumes, diffusing capacity, and arterial blood gas were all normal.
Arterial catheters are typically placed to monitor patients' blood pressure and assess their arterial blood gas levels.
Records of ventilation settings at the time of arterial blood gas testing were present in 84 percent of records post-testing versus 63 percent pre-education.
Tenders are invited for Supply of arterial blood gas shadowless lamp trans venous pacemaker
Theoretically, drawing an arterial blood gas sample should be easier than drawing venous blood.
Repositioning the probe onto the foot provided a normal trace and oximetry readings, which were confirmed by arterial blood gas analysis.