Final answer:
Sterilization is vital for critical items in medical settings to prevent infections, while semi-critical items need high-level disinfection, and noncritical items simply need to be clean.
Step-by-step explanation:
Understanding Sterilization and Disinfection in Medical Settings
In medical settings, it is crucial to maintain a sterile field during procedures to prevent sepsis and other infections. The sterilization of medical equipment is essential for items classified as critical, such as surgical instruments and catheters, which penetrate sterile tissues or the bloodstream. Semi-critical items, like gastrointestinal endoscopes, require high-level disinfection but not necessarily sterilization, as they contact mucous membranes but do not penetrate tissues. Moreover, noncritical items that contact intact skin, such as stethoscopes and blood pressure cuffs, need to be cleaned but not highly disinfected.
For maintaining equipment sterility, various methods and equipment are employed, such as autoclaves for sterilizing, and procedures like embalming and tissue specimen storage, which also require stringent sterility protocols. Vaccine components must be sterile to avoid introducing contaminants into the body. As the question indicates, utility scissors used in surgical fields are not to be included in sterile trays, highlighting the importance placed on maintaining sterility for patient safety.
When reviewing medical items for their need for sterilization, the criteria is based on the item's potential to contact sterile tissues. For example, a medical item that only contacts intact skin and does not penetrate is called a noncritical item and requires cleaning rather than sterilization.