Adult-Gerontology Clinical Nurse Specialist (CNS) Practice Exam 2026 – Comprehensive All-In-One Guide for Exam Success!

As individuals age, there is a natural increase in the anteroposterior (AP) diameter of the chest. This change is primarily due to age-related alterations in the thoracic spine, which can lead to kyphosis, a forward curvature of the spine. As the spinal curvature increases, it affects the ribs and how they articulate with the spine, causing the chest to become more rounded. This increase in the AP diameter can impact lung function, as it may reduce the efficiency of respiratory mechanics, making it vital for healthcare professionals to be aware of these changes in elderly patients.

The correct understanding of this physiological change is crucial for the assessment and management of respiratory health in older adults, as increased chest diameter can influence breathing patterns and overall pulmonary function.