A nurse is conducting an initial home health assessment for an older adult who has a new diagnosis of moderate Alzheimer's disorder and lives with their caregiver. For which of the following findings should the nurse obtain a referral to a physical therapist?

The client has gained 4.5 kg (10 lb) over 8 weeks.

The caregiver reports that recently the client is incontinent of urine during the day.

The client is unable to climb the stairs to their bedroom.

The caregiver reports the client needs assistance with activities of daily living such as bathing