A nurse is assessing a 65-year-old client for risk factors that may predispose to integumentary problems. Which assessment finding would be most concerning as a risk factor for skin breakdown?

When assessing a client's risk for skin breakdown, the nurse must differentiate between common, often benign age-related changes and critical systemic factors that directly impair tissue integrity. The integumentary system relies on adequate nutrition, hydration, and mobility to maintain its barrier function. A disruption in these foundational elements significantly elevates the risk for pressure injuries and skin failure.

Let's examine each option through the lens of pathophysiological risk:

• Option 1: Mild xerosis on bilateral lower extremities. Xerosis, or dry skin, is a common finding in older adults due to decreased sebaceous gland activity. While it can cause pruritus and discomfort, and may lead to fissures if severe, mild xerosis is a localized condition and not the most powerful predictor of deep tissue breakdown compared to a systemic nutritional deficit.



• Option 2: History of occasional sun exposure during gardening. Ultraviolet (UV) radiation from sun exposure is a major risk factor for skin cancer and photoaging (wrinkling, loss of elasticity) over a lifetime. However, it is a long-term, cumulative risk for cellular DNA damage, not an immediate predictor of integumentary breakdown like a pressure injury. This finding is less concerning in the acute context of skin integrity risk.



• Option 3: Serum albumin level of 2.8 g/dL. This is the most concerning finding. A serum albumin level below 3.5 g/dL indicates hypoalbuminemia, a marker of protein-energy malnutrition. Albumin is critical for maintaining colloid osmotic pressure, which keeps fluid within the vasculature. Low albumin leads to dependent edema, reducing the diffusion of oxygen and nutrients to the tissues. Furthermore, a protein deficit directly impairs collagen synthesis and tissue repair, making the skin less tolerant to pressure, friction, and shear. Research identifies malnutrition as a primary, independent risk factor for the development and deterioration of pressure injuries, including a specific condition known as nutrition-associated skin failure [2,3].



• Option 4: Body mass index (BMI) of 28 kg/m². This BMI falls into the overweight category. While obesity can increase the risk of skin breakdown in skin folds due to moisture and friction, a low BMI (underweight) or recent unintentional weight loss is a far more significant risk factor for pressure injuries due to the loss of protective subcutaneous tissue and nutritional deficits. This finding is less immediately critical than a laboratory value confirming severe protein depletion.

The link between malnutrition and integumentary failure is well-established. In malnourished geriatric patients, a deficiency of energy and protein impairs tissue metabolism and microcirculation, which are direct physiological pathways to skin failure ^[2]. This is not merely a superficial issue; it reflects a systemic inability to sustain the body's largest organ. Predictive models for pressure injury deterioration consistently include nutritional markers like albumin as key variables, underscoring that a low serum albumin level is a modifiable and critical risk factor that demands immediate nursing intervention, such as a dietary consult and aggressive nutritional support [3,4].