A nurse on the medical-surgical unit is reviewing reprocessing requirements for reusable equipment after each patient use. Which assignment of equipment to Spaulding classification is correct?
1A stethoscope is semicritical and requires high-level disinfection.
2An instrument entering sterile tissue is semicritical and requires high-level disinfection.
3A vaginal speculum is semicritical and requires at least high-level disinfection.✓ Correct answer
4A blood pressure cuff is critical and requires sterilization.
Explanation
Spaulding classification is based on the tissue contacted. Critical items enter sterile tissue or the vascular system and require sterilization. Semicritical items contact mucous membranes or nonintact skin and require at least high-level disinfection, so option 3 is correct for a vaginal speculum. Noncritical items such as stethoscopes and blood pressure cuffs contact intact skin and ordinarily require low-level disinfection. Options 1, 2, and 4 assign the wrong category or reprocessing level.
The Spaulding classification, published by Earle Spaulding in 1957 and adopted by CDC, organizes reprocessing of patient-care items into three categories defined by the infection risk of their use. Critical items penetrate sterile tissue or the vascular system and must be sterilized — surgical instruments, implants, urinary catheters that enter the bladder. Semicritical items contact mucous membranes or non-intact skin and must undergo high-level disinfection (HLD), with sterilization preferred when feasible — gastrointestinal endoscopes, vaginal speculae, rigid bronchoscopes, respiratory therapy equipment, anesthesia equipment. Non-critical items contact intact skin only and require low-level disinfection or cleaning — stethoscopes, blood pressure cuffs, bedrails, bedside tables. Outbreak investigations have repeatedly traced healthcare-associated infections to misclassification or skipping of HLD on semicritical items, especially flexible endoscopes, which require thorough manual cleaning before HLD.
A nurse on the medical-surgical unit is reviewing reprocessing requirements for reusable equipment after each patient use using the Spaulding classification.
Critical Items — Penetrate sterile tissue or vascular system. Examples: surgical instruments, implants, urinary catheters entering the bladder, intravenous catheters. Reprocessing: sterilization (steam autoclave is the most common; ethylene oxide or hydrogen peroxide plasma for heat-sensitive items).
Semicritical Items — Contact mucous membranes or non-intact skin. Examples: GI endoscopes, vaginal speculae, rigid bronchoscopes, respiratory therapy and anesthesia equipment. Reprocessing: high-level disinfection (HLD); sterilization preferred when feasible. Thorough manual cleaning before HLD is essential.
Non-Critical Items — Contact intact skin only. Examples: stethoscopes, blood pressure cuffs, bedrails, bedside tables. Reprocessing: low-level disinfection or cleaning between patients with EPA-registered hospital-grade disinfectants.