Hemoglobin, 13.2 g/dl; WBC, 4,300 p.1; urinalysis, normal; serum creatinine, 1.1 mg/dl; PPD, neg; EGG: right axis deviation. Arterial blood gas analysis on room air: pH, 7.42; PCO2, 32 mm Hg; Pco2, 54 mm Hg; Arterial blood gas analysis after 2.2 mm of exercise pH 7.47 Pco2, 28 mm Hg Pco2, 37 mm *Fmm the DepartmentofThoracicDiseasesandInternal Medicine, Mayo Clinic, Rochester, Minnesota. Reprint...

Two experiments evaluated effects of ractopamine hydrochloride (RAC) on performance, intake patterns, and acid-base balance of feedlot cattle. In Exp. 1, 360 crossbred steers (Brangus, British, and British x Continental breeding; initial BW = 545 kg) were used in a study with a 3 x 3 factorial design to study the effects of dose [0, 100, or 200 mg/(steer x d) of RAC] and duration (28, 35, or 42...

In a previous paper (Stevens & Randall, 1967) changes in blood pressure, heart rate and breathing rate during activity were reported. Interpretation of these results as to the physiological significance of such changes can be expanded with a knowledge of any concurrent changes in gas concentrations in blood and water afferent and efferent to the gills. Recent technical developments permitting g...

The gas chromatographic determination of volatile organic anaesthetic agents in blood and in respiratory gases is described. The analysis in blood is based on a head space technique. Sampling of inspired and end-tidal gases is carried out by means of a system including a gas sampling valve.

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 ...

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 ...

Heparin is the only anticoagulant used to prepare samples for blood-gas analysis. There are two ways in which heparin can interfere with results. The first is high heparin concentration in blood, and the second is heparin dilution of blood if liquid rather than dried (lyophilized) heparin is used. Traditional blood-gas analytes (pH, pCO2, and pO2) are less affected than electrolytes (particular...

SEVERINGHAUS, JOHN W. Blood gas calculator. J. Appl. Physiol. 21(3): I 108-1 I 16. 1966.-A slide rule is described whose scales yield direct solutions of the following blood gas problems: r) the whole blood oxygen dissociation curve of man with variable temperature, pH, and base excess; 2) the effect of anaerobic temperature change on blood Pea , Pcoz , and pH; 3) the true oxygen consumption fr...

OBJECTIVE To compare pH and PCO2 values of simultaneously obtained arterial, arterialized capillary, and venous blood samples and also to compare oxygen saturation (ASaO2) measured in arterial blood and oxygen saturation by pulse oximetry (PSaO2). METHODS Prospective study was done in the children admitted in the Pediatric Intensive Care Unit of Christian Medical College Hospital Vellore, req...