A 70-year-old male client who is convalescing from a hip replacement is identified as being at risk for developing a pressure ulcer. Which physical characteristic of aging contributes most to this risk factor?

Troponin I and CK-MB are cardiac enzymes that are released into the bloodstream when the heart muscle is injured or necrotic. Elevated levels of these enzymes indicate that the client has suffered a myocardial infarction (MI) or heart attack. The damaged heart tissue can impair the electrical conduction system of the heart and cause abnormal heart rhythms or dysrhythmias, which can be life-threatening. The PN should monitor the client's cardiac status closely and report any changes to the charge nurse.

The other options are not correct because:

B. The client is not at risk for pulmonary embolism, which is a blockage of a pulmonary artery by a blood clot or other material. Pulmonary embolism does not cause elevated cardiac enzymes, but it can cause chest pain, shortness of breath, and hypoxia.

C. The client is not at risk for recurrent long-term angina pain, which is chest pain caused by reduced blood flow to the heart muscle due to narrowed or blocked coronary arteries. Angina pain does not cause elevated cardiac enzymes, but it can be a warning sign of an impending MI.

D. The lab results do not indicate risk factors for transient ischemic attack (TIA), which is a temporary interruption of blood flow to a part of the brain due to a clot or plaque. TIA does not cause elevated cardiac enzymes, but it can cause neurological symptoms such as weakness, numbness, or speech difficulties.

The correct answer is choice B: Thinning of the skin with loss of elasticity.

Choice A rationale:

While a decreased ability to communicate can be a significant challenge in elderly clients, it is not the primary physical characteristic of aging that contributes to the risk of pressure ulcers. Pressure ulcers develop due to prolonged pressure on specific areas of the skin, leading to reduced blood flow and tissue damage.
Choice B rationale:

Thinning of the skin with loss of elasticity is a critical physical characteristic of aging that contributes to the risk of pressure ulcers. As the skin becomes thinner and less elastic with age, it becomes more susceptible to injury from pressure and shear forces, increasing the likelihood of developing pressure ulcers.

Choice C rationale:

A 16 percent increase in overall body fat does not directly contribute to the risk of pressure ulcers. While changes in body composition occur with aging, the primary risk factors for pressure ulcers are related to skin integrity and mobility, not body fat percentage.

Choice D rationale:

Calcium loss in the bones (osteoporosis) is not the main contributing factor to pressure ulcers. Osteoporosis primarily affects bone density and strength but does not directly influence the development of pressure ulcers.