Final answer:
Pregnant patients with constipation can safely use docusate sodium (Colace), which is a stool softener and generally safe during pregnancy. Healthcare provider consultation is always recommended before starting any new medication.
Step-by-step explanation:
A 21 week pregnant patient seeking treatment for constipation may safely use docusate sodium (Colace). This medication acts as a stool softener, which is generally considered safe for use during pregnancy. It works by increasing the amount of water the stool absorbs in the gut, making the stool softer and easier to pass. Docusate sodium is often recommended as a first-line treatment for constipation in pregnant women. It is important for pregnant patients to consult their healthcare provider before starting any new medication, including over-the-counter options.