Final answer:
Best practice at discharge for assessing Lily's OT outcomes would be to re-rate the WeeFIM, as it provides a direct comparison of her abilities from the initial evaluation to discharge.
Step-by-step explanation:
A best practice in the Occupational Therapy (OT) process at discharge would involve using outcome measures that reflect changes in the client's abilities over time. In this scenario, Carter should re-rate the WeeFIM as an outcome measure at discharge. Re-using the same assessment tool that was utilized at the onset of therapy, the WeeFIM in this case, provides a consistent method for tracking Lily's progress in self-care, mobility, and cognition and determining the effectiveness of the OT interventions.
While other tools like the Vineland Adaptive Behavior Scales, interviewing the parent, and the Canadian Occupational Performance Measure (COPM) provide valuable information, they serve different purposes. Each has its own focus, such as broader adaptive behaviors or client-centered goals. However, for the purpose of measuring specific changes in functional status, it is appropriate to use the same assessment tool used initially to observe growth and make comparisons.