CRCST Chapter 9 (Disinfection) with 100% correct answers

This low-level disinfectant is incompatible with soap. (A) Alcohol (B) Phenol (C) Quaternary ammonium compounds (D) Ortho-phtalaldehyde C When using glutaraldehyde, technicians should always wear latex gloves for protection. (A) True (B) False B When using high-level disinfectants it is important to remember they may be deactivated by (A) dilution. (B) organic matter. (C) time. (D) all the above. B In an automated washer the key source of disinfection is (A) hydrogen peroxide. (B) water temperature. (C) heat. (D) disinfecting detergent. B The use of test strips to test the minimum effective concentration in high-level disinfection solutions is required (A) weekly, preferably daily. (B) daily. (C) each time the solution will be used. (D) only when manual soaking systems are used. C The use of heat to kill all microorganisms, except spores, is called (A) sterilization. (B) thermal disinfection. (C) high-level disinfection. (D) mechanical disinfection. B These chemicals are used on animate (living tissue) to slow the growth of microorganisms. (A) Glutaraldehydes (B) Disinfectants (C) Halogens (D) Antiseptics D Items that are introduced directly into the bloodstream or other normally sterile areas of the body are classified as (A) critical items. (B) semi-critical items. (C) non-critical items. (D) equipment. A The process by which all forms of microorganisms are completely destroyed is (A) high-level disinfection. (B) thermal disinfection. (C) sterilization. (D) chemical disinfection. C Iodophors are a member of this chemical family. (A) Halogens (B) Quaternary ammonium compounds (C) Alcohol (D) Phenolics A Phenolics are classified as (A) intermediate to low-level disinfectants. (B) intermediate to high-level disinfectants. (C) high-level disinfectants. (D) sterilants. A