Quality of the water used in hemodialysis services before and after going through a treatment system in Santarém, Western Pará, Amazonia ; Qualidade da água utilizada em serviços de hemodiálise antes e após passar por sistema de tratamento em Santarém, Oeste do Pará, Amazônia

The water used in hemodialysis services goes through a treatment system in order to ensure that the microbiological and physicochemical parameters are adequate and provide safety to the patient. This work evaluated the quality of water before and after it went through a treatment system in two hemodialysis services (A and B) in Santarém. Water samples were collected at three points: Point 1 (P1) after leaving the well, Point 2 (P2) leaving the treatment and Point 3 (P3) on the hemodialysis machine. Microbiological and physical-chemical tests were performed and the results showed no growth of total coliforms and Escherichia coli in the samples. In service A, there was contamination by heterotrophic bacteria in 87% of the samples, 27% of which occurred in P3. The pH was less than 6.0 in P1 in both services, normalizing its values in P3. Service A, concentrations higher than the recommended amount of aluminum and nitrate were verified in 100% of the samples collected in P1, the values were normalized at the end of the treatment (P2). The research demonstrated that, for the studied parameters, the water quality, after going through a treatment system, is satisfactory, with the exception of heterotrophic bacteria in service A. ; A água utilizada em serviços de hemodiálise passa por um sistema de tratamento a fim de garantir que os parâmetros microbiológicos e físico-químicos estejam adequados e proporcionem segurança ao paciente. Este trabalho avaliou a qualidade da água antes e após esta passar por sistema de tratamento em dois serviços (A e B) de hemodiálise em Santarém. Foram coletadas amostras de água em três pontos: Ponto 1 (P1) após saída do poço, Ponto 2 (P2) na saída do tratamento e Ponto 3 (P3) na máquina de hemodiálise. Testes microbiológicos e físicoquímicos foram realizados e os resultados mostraram que não houve crescimento de coliformes totais e Escherichia coli nas amostras. No serviço A, houve contaminação por bactérias heterotróficas em 87% das amostras, destas,27% ocorreram no P3. O pH mostrou-se ...