Children do not always willingly participate in the NRMP despite preparation and distraction. This thus puts tactfulness to the test and restraint may become necessary. In these situations the nurses also need to find a way to help the children, which can include preparing them with sedative drugs, anesthetic patches, or nitrous oxide. Nurses say that it is important that parents give their consent and that the children, as far as it is possible, are involved in how the procedure is to be performed: You need to have parents with you, because you can't oppose both the children and parents. Nurses describe that the loss of control that restraining can result in is even worse than the syringe: They've just been held down and it becomes an injustice, that's what it's like. In spite of this, restraining a child is sometimes necessary, and is thus at the same time supportive, because scared children can build up an internal stress: Allowing a child to decide for him/herself isn't good because then we would have been sitting there discussing maybe for half an hour, 40 minutes. While one nurse says that: For my own sake, it might be easier and just go in and do it quickly. But it isn't good in the long run. The children's previous experience of care is relevant for how well the procedure goes. According to one nurse, a mother spoke of them having experienced a difficult situation at the child health care services the previous week, when four people had to restrain the child while taking a blood sample, and the nurse says: If there's been a situation like this, then you must handle it a little differently. An interruption can, in certain circumstances, be supportive in that the child can go home and prepare for another occasion. If the children have no previous experience of NRMP, they can feel fear because the procedure is not familiar and they thus can be helped by being held: Then they are afraid because they don't know what will happen. And they are afraid of losing control.