Which Should Maternity Nurses Be Aware of When Answering Questions

Which should maternity nurses be aware of when answering questions about the many ways people have tried to make the birthing experience more comfortable?

A) Music supplied by the support person has to be discouraged because it could disturb others or upset the hospital routine.
B) Women in labour can benefit from sitting in a bathtub,but they must limit immersion to no longer than 15 minutes at a time.
C) Effleurage is permissible,but counterpressure is almost always counterproductive.
D) Electrodes attached to either side of the spine to provide high-intensity electrical impulses facilitate the release of endorphins.