Nowadays, medicine tends towards specialization. But there are also more shared or interdisciplinary processes in which professionals request some type of technique or a diagnostic or therapeutic procedure that must performed by another specialist. In this scenario that involves different professionals, it is reasonable a certain debate about which of them should obtain the informed consent of the patient. The first error would be to pose this process as a confrontation between professionals who derive or delegate their own responsibilities to another. It is, on the contrary, a teamwork and not a mere delegation of duties. On the one hand, it should be the doctor who carries out the technique and, therefore, knows it best as a procedure and is an expert in the early diagnosis and management of side effects, who should inform about the procedure and its risks. And, therefore, it is his duty to obtain the appropriate informed consent. And, since everything is understood as a shared process, it would also be advisable that the physician in charge of the care and follow-up of the patient, and who has taken the initiative to request this technique, had already provided basic information, more focused on the reason for the indication, and that a pre-consent had been obtained, that is a prior elementary verbal consent of acceptance or, at least, of non-rejection. And it would be convenient to record this information in the medical record as well.