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The general objectives were to determine isodose's curves within Hemodinamia's Laboratory, by means of the evaluation of the KERMA (Kinetic Energy Release in Matter) in air and to relate the zones examined with the distribution that the staff occupationally exposed (POE) during the realization of these procedures embraces . The specific objectives were to measure the rate of exposition with ionization chamber for the different utilized projections, estimating the rate of equivalent dose around mSv/h which the POE within the Laboratory in the several utilized points to make measurements and to identify the points with KERMA's bigger levels in air within the Laboratory is on view to. Measurements were accomplished according to projection and fantoma's thickness with a same ionization chamber Radcal of 1800 cc located in points circumscribed in advance within Hemodinamia's Laboratory. They manufactured graphics and maps with curves of distribution of dose superimposed to the architectonic diagram of Hemodinamia's Laboratory, delimiting in the maps the levels of distribution of dose once determined sectors were associated to. One point of position of the POE which the rate of exposition and his equivalent values in of dose was identified you presented the higher and dangerous levels for the projections that they simulated labor quotidian conditions within Hemodinamia's Laboratory of the Clinical Hospital of the University of Chile and thicknesses of fantoma utilized in this work and. We can affirm in conclusion that isodose's curves modify according to the incidence of the bundle of X-Rays or according to the projections utilized during the procedures angiographic themselves, this gets rid of the simple observation of graphics and maps with the curves of distribution of dose. [ABSTRACT FROM AUTHOR]