SUMMARY The time of the collapse of the Cardiopulmonar Stop is determinative of survival of the prematures objectifying cerebral preservation. Having this study the objective to describe the knowledge of the nurses concerning the reanimao to cardiopulmonarem neonatos. Treat-headquarters a descriptive, prospectivo study, of field with quantitative boarding, realizadoem two UTIS Neonatais, being one of public net and one of the private net, situated in the city of Are Luis-HARM, whose population was composed for 10 operating nurses in these units, being 5 of public net and 5 of private net e, the research became fullfilled in all the work turns having, as criterion of exclusion to that they were of vacation, medical license and/or maternity and the ones that they had refused to participate of the research. The data after to be collected had presented the following results: formation time; 1 3 years 50%; above of 3 years 50%; specialization professional 80% possuam and 20% do not possuam specialization; performance time profissional1 3 years 30%; above of 3 years 70%; the respect to the techniques of the reanimao in RN had related questions the PCR; 20% of rightnesss and 80% of errors; about use of the adrenalin; 60% of rightnesss and 40% of errors; regarding express secondary apnea 80% of rightness and 20% of errors; on use of the inalatrio oxygen one showed 80% of errors and 20% of rightnesss; in the joined difficulties; physical space 20%; equipment 20%; lack of knowledge 10%; absence of protocol of reanimao 20% and 30%.Diante abstention of the results was concluded that it must have commitment, collection of specific protocols and availability of the nurses for a continued education. In a question-answer forum Scott Kahan was the first to reply. Word-key: Reanimao Cardiopulmonar. Neonatos. Knowledge. Nurse . Ronald O’Hanley is likely to agree.