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Which term is used to describe an agent that inhibits bacterial growth but does not kill bacteria?

Bactericidal

Bacteriostatic

Bacteriolytic

Bacteriophage.

Answer and Explanation

The Correct Answer is B

A bacteriostatic agent is an agent that inhibits the growth or reproduction of bacteria, but does not kill them.

This means that the bacteria are still alive, but they cannot multiply or cause infection.

Choice A) Bactericidal is wrong because a bactericidal agent is an agent with the capability to kill bacteria.

This means that the bacteria are no longer alive or viable.

Choice C) Bacteriolytic is wrong because a bacteriolytic agent is an agent that causes the lysis or rupture of bacterial cells.

This means that the bacteria are destroyed and their contents are released.

Choice D) Bacteriophage is wrong because a bacteriophage is not an agent, but a type of virus that infects and replicates within bacteria.

This means that the bacteriophage uses the bacteria as hosts and may kill them or not depending on the type of infection.

Question 78.

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Correct Answer is A

Explanation

Maraviroc is aCCR5 coreceptor antagonistthat blocks the receptor site the HIV virus needs to interact with in order to enter the cell.It prevents viral fusion with host cell membrane by binding to the CCR5 receptor on CD4+ T cells and macrophages.

Choice B is wrong becauseAbacavir is wrong because it is anucleoside reverse transcriptase inhibitor (NRTI)that inhibits the enzyme reverse transcriptase, which converts viral RNA into DNA.

It does not prevent viral fusion with host cell membrane.

Choice C is wrong becauseDarunavir is wrong because it is aprotease inhibitor (PI)that inhibits the enzyme protease, which cleaves viral proteins into functional units.

It does not prevent viral fusion with host cell membrane.

Choice D is wrong becauseFosamprenavir is wrong because it is also aprotease inhibitor (PI)that inhibits the enzyme protease.

It does not prevent viral fusion with host cell membrane.

A. Ciprofloxacin B. Imipenem C. Penicillin V D. Metronidazole E. Gentamicin.

Correct Answer is E

Explanation

Gentamicin is an example of a concentration-dependent antimicrobial, which means that it achieves increasing bacterial kill with increasing levels of drug.The peak concentration and the area under the concentration curve (AUC) determine the efficacy of these antibiotics.Other examples of concentration-dependent antimicrobials include fluoroquinolones, daptomycin, aminoglycosides, and amphotericin

Choice A is wrong because ciprofloxacin is a fluoroquinolone, which is also a concentration-dependent antimicrobial.

Choice B is wrong because imipenem is a carbapenem, which is a type of beta-lactam antibiotic.Beta-lactams are time-dependent antimicrobials, which means that their bactericidal activity depends on the duration of the effective concentration.

Choice C is wrong because penicillin V is another type of beta-lactam antibiotic, which is also a time-dependent antimicrobial.

Choice D is wrong because metronidazole is a bactericidal agent that has both time- and concentration-dependent properties.However, it is not classified as a concentration-dependent antimicrobial according to the AMEG categorization of antibiotics in the European Union.

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Which term is used to describe an agent that inhibits bacterial growth but does not kill bacteria?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which of the following antiviral medications prevents viral fusion with host cell membrane?

Correct Answer is A

Explanation

Which antibiotics are classified as concentration-dependent antimicrobials?

Correct Answer is E

Explanation

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A nurse is teaching a client who has been prescribed tetracycline, a tetracycline antibiotic, for acne vulgaris. Which of these instructions should the nurse include in the teaching? (Select all that apply.)

A nurse is administering penicillin to a client who has streptococcal pharyngitis. The nurse should monitor for which adverse effect of penicillin therapy?

A nurse is preparing to administer flucytosine to a client who has a systemic fungal infection. Which of the following assessments should the nurse perform before giving this medication? (Select all that apply.).

Which term is used to describe an agent that inhibits bacterial growth but does not kill bacteria?