The Perinatal Nurse Observes a Woman Entering the Transition Phase

The perinatal nurse observes a woman entering the transition phase of labor while she uses a patterned breathing method to cope with the increasing strength of contractions.She complains of light-headedness and tingling in her fingers.The most appropriate intervention by the nurse is to assist the patient in doing which of the following?

A) Breathing more slowly and taking a cleansing breath
B) Cupping her hands and breathing into them
C) Putting her head between her knees
D) Returning to bed and lying on her left side