AIMS To describe the relation between oscillatory amplitude changes and arterial blood gas (ABG) changes in preterm infants receiving high frequency oscillatory ventilation, using a multiparameter intra-arterial sensor (MPIAS). METHODS Continuous MPIAS ABG data were collected after amplitude changes and stratified according to FIO(2): high (> 0.4) or low (< 0.3). For each amplitude change, th...

In addition, due to the nature of ABG testing, clinicians cannot afford to waste time or resources when making decisions based on an ABG sample analysis. To ensure accurate results for such decision-making, it is imperative that the analytical process be as standardized and finely calibrated as possible. For example, variations in technique in the areas of specimen preparation, turnaround time ...

AIMS To investigate the effect of a pneumatic tube system (PTS) on the results of samples sent for blood gas analysis to a central laboratory. METHODS Blood gas samples were analysed immediately or sent via the PTS to the laboratory for analysis. In addition, samples sent via the PTS in a pressure sealed container were compared with those sent non-pressure sealed to the laboratory. RESULTS ...

a comparison with the same period in 1992 without the oximeter. Setting: An adult medical ED of a university hospital in France. Patients: All patients who underwent ABG or Sp02 measurements. Interventions: During the prospective study, residents ordered ABG or Sp02 measurements at their discretion. The reasons for their ordering were reviewed by two independent experts who determined whether t...

Arterial Hypertension Pulmonary hypertension (PH) is a haemodynamic and pathophysiological condition defined as an increase in mean pulmonary arterial pressure (PAP) ≥25mmHg at rest, as assessed by right heart catheterisation. PH covers a heterogeneous group of clinical conditions and is classified (according to the most recent classification system defined during the fourth World Symposium on ...

Metabolic acidosis has recently been observed in rat models of salt-sensitive genetic hypertension. To test the hypothesis that salt sensitivity in humans may be associated with abnormal acid-base homeostasis, we performed arterial blood gas analyses in young (20-31 years old) normotensive subjects (n = 40) who were placed on a low salt diet (20 mmol NaCl/day) for 2 weeks with either 200 mmol s...

Most inaccuracies in the analysis of gases and electrolytes in arterial blood samples are due to preanalytic factors, among which is the type of equipment used for blood collection. Our objective was to compare arterial blood gas sample kits used under clinical conditions and to evaluate the impact of delay in estimation on variability in results. In 2 types of study we compared 5 kits (Radiome...

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...

BACKGROUND As part of our overall interest in the mechanisms and treatment related to the development of the lethal triad of hypothermia, acidosis, and coagulopathy seen in trauma patients, the purpose of this study was to determine whether acidosis, inducible either by HCl infusion or hemorrhage/hypoventilation, leads to coagulopathy, and if correction of the acidosis will alleviate this coagu...

BACKGROUND In pulmonary arterial hypertension (PH), sympathetic adrenergic activity is highly elevated. Sympathetic overactivity is a compensatory mechanism at first, but might be detrimental for cardiac function in the long run. We therefore investigated whether chronic low-dose treatment with bisoprolol (a cardioselective β-blocker) has beneficial effects on cardiac function in experimental P...