Sterilization and disinfection
According to Spaulding Classification System of Sterilization, following is true except: (AIIMS 2010)
|A||“Non-critical devices” come into contact with intact skin.|
|B||Semicritical equipments need low-level sterilization.|
|C||“Semi-critical devices” come into contact with non-sterile mucous membranes or non-intact skin.|
|D||Cardiac catheter is critical equipment.|
a. Dr. Earl Spaulding developed a framework to guide reprocessing decision making based on the patient's risk for infection that various types of instrument or equipment contact can create.
b. Critical device- Equipment/device that enters sterile tissues, including the vascular system-Cleaning followed by sterilization. Eg. surgical instruments, cardiac and urinary catheters, implants, endoscopes that break mucosal barrier
c. Semi critical Equipment/Device- Equipment/device that comes in contact with non-intact skin or mucous membranes but do not penetrate them- Cleaning followed by high level disinfection( elimination of all microorganisms except high numbers of bacterial spores) as minimum. Sterilization is preferred. Eg. Thermometers, respiratory therapy and anesthesia equipment, bronchoscopes, gastrointestinal endoscopes, and cystoscopes, esophageal manometry probes.
d. Noncritical Equipment/Device- Equipment/device that touches only intact skin and not mucous membranes, or does not directly touch the client/patient/resident- Cleaning followed by low level disinfection. In some cases, cleaning alone is acceptable. Eg.bedpans, blood pressure cuffs, crutches, linens, bedside tables, stethoscope, ECG machines