N AVERAGE adult at rest consumes approximately A 100 million trillion molecules of oxygen per second; with virtually no capacity for oxygen storage, cessation of oxygen delivery quickly results in irreversible cellular damage. The human cardiopulmonary system functions remarkably well in healthy individuals, maintaining the mitochondrial oxygen tension (greater than 1 mmHg) required for aerobic...

During cardiopulmonary bypass blood gases can be analyzed with laboratory equipment or with an in-line monitor giving instant results. The manufacturer of the CDI 500 in-line blood gas monitor recommends gas calibration before use. In acute cases there may not be time to perform a gas calibration. We hypothesized that after calibration against laboratory results, the CDI values of pH, pO2, and ...

background: fetal color doppler is important for evaluation of hypoxia in intrauterine growth restriction (iugr) fetus. objective: in this study we compare fetal and maternal color doppler with blood gas analysis to detect fetal acidosis. materials and methods: in this cross-sectional study we evaluated 100 hospitalized patients with iugr for comparison of color doppler results with arterial bl...

INTRODUCTION Glucose control to prevent both hyperglycemia and hypoglycemia is important in an intensive care unit. Arterial blood gas analyzers and glucose meters are commonly used to measure blood-glucose concentration in an intensive care unit; however, their accuracies are still unclear. METHODS We performed a systematic literature search (January 1, 2001, to August 31, 2012) to find clin...

42 Abstract Background: Blood gas analysis is a widely used procedure. In clinical practice, the physicians may not always have a blood gas analyzer in their proximity. Not infrequently, blood gas samples are stored in a fridge or on ice and read retrospectively. Continued anaerobic and aerobic metabolism in the blood may alter blood gases in the interval between drawing arterial blood and its ...

Blood cultures from 196 patients with suspected bacteraemia or septicaemia were analysed by automated head-space gas chromatography, using a 25 m fused silica capillary column, when turbidity indicated growth. Gas chromatography correctly identified 105 cultures as positive and 71 correctly as negative. No false-positive results were obtained. Of the 20 false-negative chromatographic results, S...

The ABL 500 blood gas analyser from Radiometer has cordless electrodes and does not use a humidifier for calibrating gases. During the evaluation of the analytical performance of this instrument, the problem of p0(2) accuracy was approached by comparing the values obtained with two kinds of tonometry (film and bubble). An acceptable level of imprecision was demonstrated for all measured paramet...

UNTIL recent years methods of blood gas measurement have been difficult and they were therefore not widely available. Their possible value in routine clinical practice was consequently largely unknown and unexplored, and many clinicians have forgotten their basic knowledge of oxygen and carbon dioxide physiology. The sequence is now in reverse. There are easy methods which could be widely avail...

ONE OF THE MOST RAPID and significant transformations in clinical practice that evolved from physiological research is the development of the modern, integrated blood gas analyzer (1, 2, 4). We take for granted the ability to measure PO2, PCO2, and pH in blood samples quickly and reliably. The significance of this technology has had wide-ranging effects in physiological research and clinical me...