Which disinfectant technique is required for reusable surgical instruments that penetrate sterile human tissue or vascular spaces?

Answer and explanation

Correct answer: B. High-pressure steam autoclaving (Sterilization)

  1. Step 1: According to the Spaulding classification system, medical devices that enter normally sterile human tissues or the vascular space are classified as "critical items" that pose the greatest risk of infection if contaminated.
  2. Step 2: Critical reusable surgical instruments must undergo complete destruction of all forms of microbial life including resistant bacterial endospores, achievable through high-pressure steam autoclaving (Sterilization).
Answer
High-pressure steam autoclaving (Sterilization).
Why not the others: Low-level alcohol wiping, hot water rinsing, and ultrasonic cleaning alone do not eradicate bacterial endospores and are insufficient for critical surgical instruments entering sterile tissue.

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