Which of the following statements best lists factors influencing infection prevention?

• A. Color of scrubs, shift length, and weather
• B. Hair length, nail polish color, and shoe type
• C. Age, sex, nutritional status, stress, and disease process
• D. Glove size, mask style, and hospital floor

Answer: (C)

Infection prevention is shaped by host-related factors that influence how well the body defends itself and how susceptible a person is to infection. Age matters because immune function changes across the lifespan, making both the very young and the elderly more vulnerable. Sex can influence infection risk through hormonal and anatomical differences that affect immune responses. Nutritional status is crucial—malnutrition or nutrient deficiencies weaken immune defenses and impair healing. Stress can suppress immune function via hormonal pathways, increasing susceptibility and slowing recovery. The current disease process matters because chronic illnesses or active infections can compromise immunity and overall defense mechanisms.

These person-centered factors best explain why infection prevention is more or less effective for an individual, whereas other options mix cosmetic aspects, PPE preferences, or environmental considerations that don’t directly address the patient’s inherent vulnerability to infection.