[Topographic rapid pH-metry. Possibilities and prospects of use in the functional diagnosis of stomach diseases].

More than 700 patients were examined by rapid intragastric pH-metry with the use of original pH-microtubes and K -2 device. Numerous advantages of the method were observed: the tube is easy to introduce into the stomach, the procedure is short, there are no contraindications against it, it involves no complications, pH values can be recorded along the entire stomach (30 cm) with just 1 cm intervals (topographic pH-metry). Diagnostic potentialities of the method are limited because there are no standard pH values for each specific site of the stomach under conditions of basal and stimulated secretion.

[Blood content of tetrachloroethylene in workers of dry cleaners].

Concentrations of tetrachloroethylene (TCE) in the blood of workers employed in dry-cleaning workshops were measured by gas chromatography method and found to vary from 0,19 to 3,95 mmol/l.

[Breath monitoring in workers in contact with vapors of organic solvents].

Large concentrations of solvents vapour were determined in occupational air. Individual monitor was effective in the assessment of personal exposure of workers to the solvents.