Which symptom might indicate potential complications requiring further assessment in an elderly client?

Persistent ringing in the ears, known as tinnitus, can signify potential complications that might necessitate further medical evaluation, particularly in elderly patients. This symptom could indicate underlying conditions such as age-related hearing loss, medication side effects, or even more serious issues such as changes in blood vessels or neurological conditions. As such, persistent symptoms like tinnitus should prompt healthcare providers to conduct further assessments to rule out these possibilities and ensure appropriate management.

In contrast, the other options generally reflect conditions or symptoms commonly encountered in the aging population that might not immediately indicate complications. Increased mobility is usually a positive sign, suggesting improved health or recovery. Bilateral hearing loss, while concerning, is often considered a normal part of aging and may not indicate urgent complications. Occasional joint stiffness, often attributed to age-related changes such as osteoarthritis, similarly does not usually warrant immediate concern unless it becomes persistent or severe. Thus, tinnitus stands out as a symptom that warrants more thorough investigation.