A client in active labor asks the nurse for coaching with her breathing during contractions.

(A) Lamaze childbirth preparation teaches the use of chest, not abdominal, breathing. (B) In Lamaze preparation, every patterned breath is preceded by a cleansing breath; as labor progresses, shallow, paced breathing is found to be effective. (C) It is important to assume a comfortable position in labor, but the Lamazeprepared laboring woman is taught to breathe with her chest, not abdominal, muscles. (D) When deep chest breathing patterns are used in Lamaze preparation, they are slowly paced at a rate of 6–9 breaths/min.