Which action by a postpartum patient indicates that the instruction on the use of a sitz bath was effective?

Using a sitz bath three times a day demonstrates that the patient has understood and is following the instructions provided regarding its use for postpartum care. A sitz bath is recommended to help soothe perineal discomfort, promote healing, and enhance overall comfort in the weeks following childbirth. The frequency of use is significant; utilizing the sitz bath multiple times daily indicates the patient is actively engaging in self-care and managing her recovery appropriately.

In contrast, the other options reflect deviations from the recommended care plan. For example, using hot compresses might not provide the same therapeutic benefits as a sitz bath, which is specifically designed to submerge the perineal area in warm water and not just apply heat without specifically targeting the area. Taking a warm shower does not provide the concentrated and localized comfort that a sitz bath offers. Avoiding baths altogether would also suggest a lack of adherence to the patient's care plan, potentially leading to discomfort and longer healing times. Thus, the action of using the sitz bath three times daily clearly indicates effective understanding and application of the postpartum self-care guidance.