Ahead of this context also the error can be considered reflected of one politics of precarious health, of the lack of more frequent and more operating a fiscalizador agency and authorities in the hospitals to evaluate the conditions of the work identifying problems and preventing errors. We have conscience that the philosophy of the nursing is not to cure, but simply to take care of, therefore the cure is of medical ability, to also prescribe drugs, and ahead of the fatdica situation, when the professional to miss, to execute inadequate function the situation goes to be distinguished and this they go to be punished, after all the system is in crisis, then the care also. I think that nobody would like to make a mistake, but in the presence of the error ' ' They only look culpados' ' , also we must know the causes of the error, what it led to happen, after all does not have missed hour, missed person, when we take care of, only responsibility. Of this conturbado universe that afflicts the people very the human being is estressado of nature, consequence of the mental and physical exhaustion, therefore to exceed overtime as 24, 36 and 48 consume, diminish income, colaborante factor for such, therefore the attention and the concentration are primordial to act in the practical one of care. Reason (1990) cited by the IOM (2007, p.54) defines error as ' ' the occasion where a gliding sequence of physical or mental activities does not obtain to reach the intended result, not being able these imperfections to be attributed acaso.' ' In accordance with this author, can to speak of error when intention exists, what it means that when we are before a not deliberate behavior, we are not before an error. When an error occurs, the immediate reaction is to look for to identify ' ' culpado' '.