Carbohydrate-deficient transferrin (CDT) examinations have been used with those people who regularly consume more than 60 gr. of alcohol in a day, especially in cases of medical insurance. In these cases the CDT provides information about them even 2-3 weeks later. Aim of the study: In adaequate literature there are not many informations concerning the CDT values in individuals using chemicals. This is why these cases are interesting for demonstration. Case report: In the first case the examination of CDT was carried out one month after using the chemical material - nitro-based lacquer - and its value was increased. In the other case an agricultural man worked on a tractor spreading plant-protecting chemicals. Six months after finishing this type of work similar results were found: highly increased value of CDT. Conclusion: As both these people were documented to be abstinent for alcoholic beverages, it is rather likely that the values of CDT can be the signal of the increased chemical expositions. With the proceeding of the CDT examinations it is necessary to look forward to the potentials of the revealing of the chemical expositions. The authors suppose that the examination of CDT value in workers with chemical expositions can show the pathological changes caused by these materials.
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