For a client admitted with fluid overload, which tasks are suitable to delegate to a patient care associate?

Documenting urine output is suitable to delegate to a patient care associate because this task involves straightforward data collection that does not require specialized nursing judgment or skills. Patient care associates are trained to accurately measure and record basic information regarding patients' outputs, such as urine. This task is critical for monitoring fluid balance and can help the healthcare team assess the client's status.

In contrast, the other options involve responsibilities that require advanced knowledge and skills. Performing an ECG requires technical expertise to not only administer the procedure but also to interpret the results accurately. Adjusting IV fluids involves a nuanced understanding of the patient’s condition and may require clinical judgment, making it inappropriate for delegation to a patient care associate. Prescribing medications is a task that is strictly within the scope of licensed healthcare professionals and must be performed by a nurse or physician.