HSPA Ch. 4: Microbiology for Central Service

Microorganism

A microscopic organism, such as a bacterium, virus, or fungus.

Bacteria

Single-celled microorganisms without a nuclear membrane that reproduce by binary fission.

Virus

An infectious agent that requires a living host cell to reproduce.

Fungus

Single-celled or multicellular organisms, like molds or yeasts, that feed on organic matter.

Spore

A highly resistant, dormant structure formed by some bacteria to survive adverse conditions.

Binary fission

A method of asexual reproduction where a single cell divides into two equal parts.

Which microorganisms require a living host to reproduce?

Viruses.

Which microorganisms are among the most resistant to sterilization?

Spores (bacterial spores).

Why must Central Service professionals understand different types of microorganisms?

To prevent transmission of infectious agents and ensure effective sterilization.

What factors besides moisture and temperature influence microbial growth?

pH (acidity/alkalinity), oxygen, and nutrients.

What does biofilm protect microorganisms from?

Cleaning, disinfection, and sterilization processes.

What is a prion, and what disease is it associated with?

An abnormal infectious protein associated with Creutzfeldt-Jakob Disease (CJD).

Why is prion knowledge critical in the Sterile Processing Department (SPD)?

Prions are highly resistant to standard sterilization, requiring special reprocessing protocols.