Indirect Estimation of Arterial CO2 Tension in Emphysema
نویسندگان
چکیده
منابع مشابه
TEMPERATURE CORRECTION OF ARTERIAL BLOOD pH AND CO2 TENSION IN NEWBORN INFANTS: A NEW SOLUTION FOR AN OLD PROBLEM
The acid-base status and arterial blood gas change with temperature variation. To determine the changes in arterial pH and pC02, arterial blood samples of 50 neonates with different clinical conditions were examined at temperatures of 35 to 42°C with an increment of 0.5° C, which resulted in two nonlinear equations with perfect fit on data. The temperature correction factors of these equati...
متن کاملEffects of changes in pH and CO2 on pulmonary arterial wall tension are not endothelium dependent.
We examined the changes in isolated pulmonary artery (PA) wall tension on switching from control conditions (pH 7.38 +/- 0.01, PCO2 32.9 +/- 0.4 Torr) to isohydric hypercapnia (pH change 0.00 +/- 0.01, PCO2 change 24.9 +/- 1.1 Torr) or normocapnic acidosis (pH change -0.28 +/- 0.01, PCO2 change -0.3 +/- 0.04 Torr) and the role of the endothelium in these responses. In rat PA, submaximally contr...
متن کاملtemperature correction of arterial blood ph and co2 tension in newborn infants: a new solution for an old problem
the acid-base status and arterial blood gas change with temperature variation. to determine the changes in arterial ph and pc02, arterial blood samples of 50 neonates with different clinical conditions were examined at temperatures of 35 to 42°c with an increment of 0.5° c, which resulted in two nonlinear equations with perfect fit on data. the temperature correction factors of these equations,...
متن کاملDiffusion capacity and CT measures of emphysema and airway wall thickness – relation to arterial oxygen tension in COPD patients
BACKGROUND Decreased diffusing capacity of the lung for carbon monoxide (DLCO) is associated with emphysema. DLCO is also related to decreased arterial oxygen tension (PaO2), but there are limited data on associations between PaO2 and computed tomography (CT) derived measures of emphysema and airway wall thickness. OBJECTIVE To examine whether CT measures of emphysema and airway wall thicknes...
متن کاملChanges in transcutaneous oxygen tension during exercise in pulmonary emphysema.
Continuous measurements of transcutaneous oxygen tension (tcPO2) were made in 23 patients with radiological evidence of emphysema, at rest and during a maximal progressive exercise test. tcPO2 during the final phase of exercise was compared with tcPO2 at rest; the mean change (exercising minus resting value) in tcPO2 (delta tcPO2) was -0.8 mm Hg (SD 10.5, range -18 to +25) (-0.1 kPa (SD 1.4, ra...
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ژورنال
عنوان ژورنال: Thorax
سال: 1960
ISSN: 0040-6376
DOI: 10.1136/thx.15.1.43