Which term is used to describe an agent that inhibits bacterial growth but does not kill bacteria?
Bactericidal
Bacteriostatic
Bacteriolytic
Bacteriophage.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D","E"]
Explanation
A microbe acquires antibiotic resistance by transferring DNA coding to other bacteria or by spontaneous mutation in the microbial genome.
These genetic changes allow the microbe to survive the effects of the antibiotic and pass on the resistance to its offspring.
ChoiceAis wrong because the host does not develop medication resistance, but the microbe does.
ChoiceBis wrong because the minimum bactericidal concentration (MBC) is the lowest concentration of an antibiotic needed to kill 99.9% of bacteria, not a mechanism of resistance.
ChoiceCis wrong because incorrect dosing does not cause ribosome mutations, but may promote the emergence of drug-resistant microbes by exposing them to suboptimal levels of the antibiotic.
Correct Answer is B
Explanation
A superinfection is defined as an infection that comes second to an initial infection and is often caused by the elimination of normal flora by an antibiotic.
Normal flora are the microorganisms that normally live in the human body and help prevent the growth of harmful pathogens.
When an antibiotic kills the normal flora, it creates an opportunity for other microorganisms to overgrow and cause a new infection.
Choice A is wrong because a resistant infection is an infection that does not respond to an antibiotic due to the presence of resistant bacteria.
Resistance can occur when bacteria mutate or acquire genes that make them able to survive the antibiotic.
Choice C is wrong because a nosocomial infection is an infection that is acquired in a hospital or health care setting.
Nosocomial infections can be caused by various factors, such as exposure to contaminated equipment, poor hygiene practices, or transmission from other patients or staff.
Choice D is wrong because an allergic reaction is an immune response to a foreign substance that is not harmful.
Allergic reactions can occur when a person is sensitive to an antibiotic or any other drug.
Symptoms of an allergic reaction may include rash, itching, swelling, or difficulty breathing.
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