The Breath Test by CO2 Analysis. III. CO2 Analytic Instruments for the Breath Test.

Effect of pulmonary perfusion on the slopes of single-breath test of CO2.

The objective of this study was to evaluate the effects of lung perfusion on the slopes of phases II (S(II)) and III (S(III)) of a single-breath test of CO(2) (SBT-CO(2)). Fourteen patients submitted to cardiac surgery were studied during weaning from cardiopulmonary bypass (CPB). Pump flow was decreased in 20% steps, from 100% (total CPB = 2.5 l.min(-1).m(-2)) to 0%. This maneuver resulted in ...

The urea breath test for Helicobacter pylori.

Breath Test for Assessing the Disease Activity

Few clinical studies have so far focused on gastrointestinal motility in patients with eosinophilic gastroenteritis. A 29-year-old man was evaluated for epigastralgia of unknown origin. A histopathological examination of biopsy specimens from the duodenum revealed numerous eosinophilic infiltrations. Eosinophilic enteritis was therefore diagnosed. The patient received oral prednisolone and his ...

Estimation of Insulin Resistance in Mexican Adults by the [13C]Glucose Breath Test Corrected for Endogenous Total CO2 Production

Objective. To evaluate the efficacy of the [(13)C]glucose breath test for measuring insulin resistance in Mexican adults with different glycemic states. Research Design and Methods. Fifty-eight adults underwent a [(13)C]glucose breath test with simultaneous measurement of total CO(2) production by indirect calorimetry, at baseline and 90 minutes after the ingestion of 15 g of dextrose and 25 mg...

Methacetin Breath Test

AIM: To evaluate and compare the clinical usefulness of C-phenylalanine and C-methacetin breath tests in quantitating functional hepatic mass in patients with chronic liver disease and to further compare these results with those of conventional tests, Child-Pugh score and serum