Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5795610.17816/kazmj57956Research ArticleAbout shifts of some indicators of nitrogen metabolism and exchange of chlorides when working in the darkAbdyushevSh. Ya.<p>Department of Occupational Hygiene; Central Research Laboratory</p>info@eco-vector.comMedical Institute S. V. Kurashova2905196647373741001202110012021Copyright © 2021, Abdyushev S.Y.2021<p>The lack of data on the state of metabolic processes among those working in the dark prompted us to address this issue. We carried out the determination of vacate oxygen in the urine using the Kanitz method (AM Petrun'kina, 1961) in those working in the dark.</p>Kazan Medical archiveКазанский медицинский архив