Chlorine
A. readily reacts with organics to produce potentially carcinogenic trihalomethanes.
B. is an effective, inexpensive, disinfectant able to destroy all types of microorganisms.
C. is unaffected by the presence of organic material.
D. is ineffective when diluted.
E. readily reacts with organics to produce potentially carcinogenic trihalomethanes AND is an effective, inexpensive, disinfectant able to destroy all types of microorganisms.
Alcohols are not reliably effective at destroying
A. vegetative bacteria.
B. enveloped viruses.
C.
non-enveloped viruses.
D. endospores.
E.
non-enveloped viruses AND endospores.
Glutaraldehyde
A. is, if given enough time, able to destroy all forms of microbial life.
B. is very good for use on heat-sensitive medical items.
C. attacks lipids.
D.
does not affect non-enveloped viruses.
E. is, if given enough time, able to destroy all forms of microbial life AND is very good for use on heat-sensitive medical items.
Chlorhexidine
A. is a member of the biguanides.
B. is extensively used in antiseptics.
C. is ineffective against vegetative bacteria.
D. is limited in use due to its high toxicity.
E. is a member of the biguanides AND is extensively used in antiseptics.
Chemical germicides
A. may react irreversibly with proteins/enzymes.
B. may react with cytoplasmic membranes or viral envelopes.
C. may be disinfecting or even sterilizing.
D. are sensitive to dilution factor, time of contact, and temperature of use.
E. All of the choices are true.
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