What is the single most effective healthcare practice for preventing healthcare-associated infections (HAIs)?

Answer and explanation

Correct answer: B. Routine and meticulous hand hygiene compliance

  1. Step 1: Healthcare-associated infections (HAIs) are most commonly transmitted between hospitalized patients via the transient flora contaminating the hands of health personnel.
  2. Step 2: Abundant evidence from the World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC) confirms that routine and meticulous hand hygiene compliance, using alcohol-based hand rub or soap and water, is the single most effective intervention to interrupt pathogen cross-transmission.
Answer
Routine and meticulous hand hygiene compliance.
Why not the others: Prophylactic antibiotics promote microbial resistance without preventing hospital cross-transmission, non-sterile double gloving is unnecessary for routine rounds, and UV room disinfection cannot replace hand hygiene between patients.

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