The nurse working in a geriatric unit often hears from clients that they become shorter as they grow older. Which of the following factors is responsible for this shortness?

1. A

   Contracture

2. B

   Bone degeneration in the legs

3. C

   Hyperextension of the cervical spine

4. D

   Water loss from the IVD of spine

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2019

Explanation

• The intervertebral discs (IVDs), which act as cushions between the vertebrae, have a high water content that contributes to spinal length.
• With aging, these discs undergo desiccation, meaning they lose water and become thinner and more compressed.
• This process is a key factor in age-related height loss, as the thinning of multiple discs along the spine leads to a cumulative reduction in stature.
• Sources confirm that changes in the intervertebral discs, along with osteoporosis and kyphosis, lead directly to a loss of total height in older individuals.

Why Other Options Were Wrong

• Option A: A contracture is the permanent shortening of muscle or connective tissue, which causes joint stiffness and deformity. It affects mobility, not the structural length of the skeleton.
• Option B: While bone density in the legs can decrease with age (osteoporosis), this does not cause significant shortening of the long bones. The primary site of height loss is the spinal column.
• Option C: This describes a change in posture, not a structural shortening of the body. Postural changes like kyphosis (forward curvature) are more common and can contribute to an apparent decrease in height, but the actual loss comes from the spine itself.

Related Visual

Clinical Relevance

• Nursing practice connection: Knowing Physiological musculoskeletal changes associated with aging helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Nurses should reassure older clients that a gradual loss of height (typically 1-2 inches over a lifetime) is a normal part of the aging process.
• Nursing interventions to promote musculoskeletal health include encouraging weight-bearing exercises, ensuring adequate intake of calcium and Vitamin D to slow osteoporosis, and teaching proper posture.
• Monitoring for rapid or significant height loss is crucial, as it can be a sign of vertebral compression fractures due to severe osteoporosis, requiring medical evaluation.

How to Approach the Question

• First, identify the core of the question: What is the primary physiological reason for people getting shorter as they age?
• Analyze the options by considering their anatomical and physiological impact on the body's overall height.
• Recall that the spinal column, with its numerous vertebrae and intervertebral discs, is a major determinant of stature.
• Evaluate each option's mechanism. Contractures affect joints, not bone length. Postural changes affect appearance, not structural height.
• Compare the impact of changes in leg bones versus the spinal column. The cumulative effect of compression across all 23 intervertebral discs results in a more significant height loss than changes in the legs.
• Conclude that the loss of fluid and subsequent thinning of the intervertebral discs is the most direct and significant cause of age-related height reduction.

Concept Tested & Keywords

• Concept Tested: Physiological musculoskeletal changes associated with aging.
• Stem keywords: geriatric unit, clients, shorter, grow older
• Lead-in keywords: responsible for
• Clinical cues: The common client complaint of becoming shorter with age points to a widespread physiological change.

Question ID

Qy0dA05HtkXOex8MReBOOy

Copy ID

Reference Book

E6 Anatomy Grays 43e Vol 2 Part 2 p. 7-9

E6 Nursing Brunner Adult Health 3SA Vol 1 Part 4 p. 104-106

E6 Nursing Fundamentals Potter Perry 12e Part 4 p. 132-134