Infection Control Flashcards

Which level of disinfection is required for semi-critical instruments that contact mucous membranes but do not penetrate tissue?

Answer: High-level disinfection

Semi-critical items such as vaginal specula and endoscopes contact mucous membranes and require high-level disinfection to eliminate all microorganisms except bacterial spores.

The purpose of an autoclave's biological indicator (spore test) is to:

Answer: Confirm that sterilization conditions were sufficient to kill the most resistant organisms

Biological indicators contain Geobacillus stearothermophilus spores; if they are killed, it confirms the autoclave achieved true sterilization.

When removing PPE after patient care, which item is removed LAST?

Answer: Mask or respirator

The CDC's recommended doffing sequence removes the mask/respirator last because it protects the respiratory tract from airborne contamination during doffing.

MRSA requires which transmission-based precaution?

Answer: Contact precautions

MRSA spreads primarily through direct and indirect contact with colonized skin or contaminated surfaces, requiring contact precautions.

An accidental needlestick injury should be managed FIRST by:

Answer: Immediately washing the site with soap and water

Immediate washing with soap and water for at least 15 seconds removes potential contaminants and is the first step after any needlestick.

Medical waste that includes blood-soaked materials, sharps, and pathological waste is classified as:

Answer: Regulated (infectious/biohazardous) medical waste

Blood-soaked materials, sharps, and pathological specimens are regulated medical waste requiring special containers, labeling, and disposal by licensed vendors.