[en] The human beings' erythrocytes were studied in vitro by the pre tinning method, using the pyrophosphate - Stannous Chloride Kit. Investigation of factors that can alter the labeling efficiency includes tin concentration, temperature and incubation period, besides of plasma concentration and hematocrit. It was seen that tin uptake by the red blood cells (RBC) was in an exponential fashion, with a reaction constant, K = 0,03 min ^-1. The reaction approaches the equilibrium about the 90 minutes. The binding of Tc-99 m in the Acidic insoluble fraction occurs in greater amounts with more concentrated tin solutions. The labeled and heated TBC were used in vivo to scintigraphic investigation. Normal subjects, splenomegaly, accessory spleen and splenic function in sickel-cell disease were studied. Circulation time of labeled RBC appears to be greater in sickel-cell anemia than in controls or splenectomized patients. Uptake was greater in kidney than lungs and liver. (author)

No abstract available

[en] It is presented a proposal of a Centralize Radiopharmacy Laboratory that manufacured and labeled radiopharmaceuticals kits with Tc-99m and distributed them to the various Institutions. (author)

[en] Health units are studied with the aim to investigate personnel and environmental aspects of radiological protection. The responsabilities of the worker and the institution are examined by a questionary including medicals, dentists, nursing professionals, technicists and assistants. (M.A.C.)

[en] Published in summary form only

[en] The objective of this study was explained which conditions is practiced for occupational and environmental radiological protection. Fifteen hospitables and ambulatories services, pertaining to the public system are studies, verifying that the professional group that are preoccupied with the radioprotection conditions are the assistants services and technician. The common knowledge about Basic Standards of Radiological Protection was also observed, of which is rather precarious. (C.G.C.)

[en] Several radiopharmaceuticals kits have been produced to be labeled with Tc-^99m for used in Nuclear Medicine routine. However the price of these kits are expensive. The Radiopharmacy Laboratory of Image Integrated Program of the Campanha Nacional de Combate ao Cancer was implanted with purpose to manufacture kits to be distributed to various Institutions. (author)

[en] The purpose of this study is to clear up what safety procedures are normally' observed for occupational and environmental radiology. 30 Public Medical station in Rio de Janeiro were investigated. A questionaire of 13 questions was prepared to be filled up by the professionals directly involved with the radiologic work, intending to evaluate, the personal and environmental aspect of radioprotection, the individual responsability of each worker and of the whole institution. It was also verified that knowledge of safety norms is doubtful and precarious in the despite of the fact that a great number of the people in question declare to have specific graduation for the activity. Only 45% from the total really make use of the dosimeters, the periodical medical examinations are not frequent (65%), and fewer employes make use of this lead apron (23%). We come to the conclusion that there is a remarkable bewilderment as for the personal observences about the work conditions in controlled areas. (author)

[en] Published in summary form only

[en] Published in summary form only