American Nurses Credentialing Center (ANCC) Practice Exam

Altered vibratory sensation in an older patient can indicate a potential neurological issue as it suggests that there may be a problem with the nervous system's ability to transmit sensory information. The ability to sense vibration is mediated by large myelinated fibers of the dorsal columns of the spinal cord. If these pathways are compromised due to conditions such as peripheral neuropathy, multiple sclerosis, or other neurological disorders, it can lead to diminished or absent vibratory sensation.

In contrast, high blood pressure readings are often related to cardiovascular health rather than directly indicating a neurological condition. Normal reflex responses would suggest that the neurological pathways are intact, indicating no apparent neurological issues. Likewise, stable weight history typically reflects dietary habits or metabolic status rather than neurological function. Thus, altered vibratory sensation serves as a more direct indicator of a potential neurological problem in the context of a health assessment in older patients.