Processing of Patient Care Equipment Flashcards

According to the Spaulding Classification system, a flexible endoscope used for a colonoscopy is considered what type of device?

Answer: Semi-critical

The Spaulding Classification system categorizes items based on infection risk. Semi-critical items, like flexible endoscopes, contact mucous membranes or non-intact skin and require, at a minimum, high-level disinfection to eliminate all microorganisms except for high numbers of bacterial spores.

The primary purpose of point-of-use (POU) treatment of soiled instruments is to:

Answer: Prevent the formation of biofilms by keeping instruments moist.

Point-of-use treatment, which involves wiping instruments and applying a transport gel or keeping them moist, is crucial for preventing bioburden from drying. Dried blood and tissue can lead to the formation of biofilms, which are extremely difficult to remove during the subsequent cleaning process.

Which of the following is a key parameter that must be monitored for an automated washer-disinfector?

Answer: Water temperature and detergent concentration.

For a washer-disinfector to be effective, several parameters must be correct and monitored. These include the water temperature during different phases, the correct type and concentration of detergent, and proper cycle time, all of which are critical for effective cleaning and thermal disinfection.

Before an item can be high-level disinfected, it must first be:

Answer: Thoroughly cleaned and rinsed.

Cleaning is the most important step in the entire decontamination process. High-level disinfectants cannot penetrate and kill microorganisms if they are protected by a layer of soil or biofilm, so the item must be meticulously cleaned and rinsed first.

What is the purpose of testing the Minimum Effective Concentration (MEC) of a high-level disinfectant like glutaraldehyde?

Answer: To ensure the solution is still potent enough to kill microorganisms after repeated use.

High-level disinfectants can become diluted and lose their potency with repeated use. MEC testing, using specific test strips, is performed before each use to verify that the chemical concentration is still above the minimum level required for effective disinfection.

When receiving a set of loaner instruments from a vendor, what is the first responsibility of the SPD?

Answer: Perform a complete inventory against the vendor's list and then process it through the full decontamination and sterilization cycle.

Loaner instruments must be treated as highly contaminated upon arrival. The SPD's first steps are to carefully inventory every piece to ensure the set is complete and then subject the entire set to the facility's standard, full decontamination, inspection, and sterilization procedures, regardless of what the vendor claims.

After manual cleaning, what is a critical step in processing a flexible endoscope before it undergoes high-level disinfection?

Answer: Leak testing to check for damage to the scope's internal and external surfaces.

Leak testing is a crucial safety step performed after pre-cleaning but before the scope is fully immersed for manual cleaning and HLD. A leak can allow fluid to enter the internal components of the scope, causing expensive damage and potentially harboring microorganisms, creating a significant patient safety risk.