RESUMO
PURPOSE: To compare radiation exposure of nurses when performing nursing tasks associated with interventional procedures depending on whether or not the nurses called out to the operator before approaching the patient. MATERIALS AND METHODS: In a prospective study, 93 interventional radiology procedures were randomly divided into a call group and a no-call group; there were 50 procedures in the call group and 43 procedures in the no-call group. Two monitoring badges were used to calculate effective dose of nurses. In the call group, the nurse first told the operator she was going to approach the patient each time she was about to do so. In the no-call group, the nurse did not say anything to the operator when she was about to approach the patient. RESULTS: In all the nursing tasks, the equivalent dose at the umbilical level inside the lead apron was below the detectable limit. The equivalent dose at the sternal level outside the lead apron was 0.16 µSv ± 0.41 per procedure in the call group and 0.51 µSv ± 1.17 per procedure in the no-call group. The effective dose was 0.018 µSv ± 0.04 per procedure in the call group and 0.056 µSv ± 0.129 per procedure in the no-call group. The call group had a significantly lower radiation dose (P = .034). CONCLUSIONS: Radiation doses of nurses were lower in the group in which the nurse called to the operator before she approached the patient.