Final answer:
Decussate sodium (Colace) is given to postpartum clients to relieve constipation often associated with postpartum recovery.
Step-by-step explanation:
The purpose of giving decussate sodium (Colace) to the postpartum client is to relieve constipation often associated with postpartum recovery. Decussate sodium is a stool softener that works by reducing the surface tension of the oil-water interface in the intestine, allowing water and fat to mix and soften the stool. It helps to prevent and relieve constipation and straining, which can be common after childbirth.