BACKGROUND Electrolyte values are measured both by arterial blood gas (ABG) analyzers and central laboratory auto-analyzers (AA), but a significant time gap exists between the availability of both these results, with the ABG giving faster results than the AA. The authors hypothesized that there is no difference between the results obtained after measurement of electrolytes by the blood gas and ...

The performance of the i-STAT portable clinical analyser for measuring blood gases and pH was evaluated with reference to a conventional blood gas analyser (ABL520 Radiometer). Ninety-two samples from the routine blood gas analysis laboratory were chosen according to a wide distribution of partial pressure of carbon dioxide (Pa,CO2), partial pressure oxygen (Pa,O2) and pH and then analysed. All...

BACKGROUND Results of arterial blood gas analysis can be biased by pre-analytical factors, such as time interval before analysis, temperature during storage and syringe type. OBJECTIVES To investigate the effects of samples storage temperature and time delay on blood gases, bicarbonate and PH results in human arterial blood samples. PATIENTS AND METHODS 2.5 mL arterial blood samples were dr...

Doig, W. B. (1971). Archives of Disease in Childhood, 46, 243. Value of arterialized capillary blood gas analysis in lower respiratory tract infection in childhood. Blood gas analysis on arterialized capillary blood in 70 young infants yielded satisfactory information about oxygen therapy. Inspired oxygen concentrations above 40% are often required to raise the capillary Po2 of hypoxic infants ...

Pulse oximeters are used to noninvasively measure oxygen saturation in arterial blood (SaO2). Although arterial oxygen saturation measured by pulse oximeter (SpO2) is usually indicated in 1% increments, the value of SaO2 from arterial blood gas analysis is not an integer. We have developed a new pulse oximeter that can measure SpO2 to one digit after the decimal point. The values of SpO2 from t...

Arterial blood gas analysis, the focus of this article, provides a fuller and more accurate ”gold standard” assessment of blood oxygenation status. It allows generation, not only of oxygen saturation (in arterial blood) sO2(a), but a number of further oxygen-related parameters, including the partial pressure of oxygen in arterial blood, pO2(a) and the total oxygen concentration of arterial bloo...

16 October 2007 ■ MLO www.mlo-online.com T he significance of good practice during the pre-testing phase of clinical-laboratory investigation cannot be overemphasized. The production of high-quality, accurate results, which are clinically useful, depends as much on practice before the patient’s sample reaches the laboratory as it does on the analytical phase within the laboratory. There are few...