Which statement is true regarding narrow spectrum antibiotics?

They are effective against gram-positive bacteria only.

They are effective against gram-negative bacteria only.

They are effective against one type of organism.

They are effective against a few types of organisms.

Answer and Explanation

The Correct Answer is D

They are effective against a few types of organisms. Narrow spectrum antibiotics are antibiotics that work against a limited range of bacteria, usually either gram-positive or gram-negative. They are more specific and less likely to cause resistance or disrupt the normal flora.

Choice A) They are effective against gram-positive bacteria only. This is not true because some narrow spectrum antibiotics can also target gram-negative bacteria, such as aminoglycosides.

Choice B) They are effective against gram-negative bacteria only. This is not true because some narrow spectrum antibiotics can also target gram-positive bacteria, such as vancomycin.

Choice C) They are effective against one type of organism. This is too restrictive because narrow spectrum antibiotics can work against more than one type of organism, such as penicillins that target both streptococci and staphylococci.

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Correct Answer is ["A","D"]

Explanation

Tetracycline can causephotosensitivity, which means increased sensitivity to sunlight and risk of sunburn.It can also causesuperinfection, which means overgrowth of resistant bacteria or fungi in the mouth, intestines, or vagina.

Choice B is wrong because tetracycline can causetooth discolorationin children under 8 years old, not in adults.

Choice C is wrong because tetracycline can causehepatic impairmentonly in patients with preexisting liver disease or who take high doses for a long time.

Choice E is wrong because tetracycline can causebone marrow suppressiononly in patients with preexisting blood disorders or who take high doses for a long time.

A. Take the medication with an antacid to reduce gastric irritation. B. Drink plenty of fluids to prevent crystalluria. C. Avoid sexual intercourse until treatment is completed. D. Chew the tablets thoroughly before swallowing. E. Electrocardiogram.

Correct Answer is C

Explanation

The client should avoid sexual intercourse until treatment is completed.This is because trichomoniasis is a sexually transmitted infection that can be passed between partners during penile-vaginal sex or through transmission of infected vaginal fluids or fomites among women who have sex with women. Therefore, abstaining from sex until both partners are cured can prevent reinfection and transmission.

Choice A is wrong because taking the medication with an antacid can reduce its absorption and effectiveness.Tinidazole should be taken with food to minimize gastrointestinal side effects.

Choice B is wrong because drinking plenty of fluids to prevent crystalluria is not relevant for tinidazole.

Crystalluria is a condition where crystals form in the urine, which can cause kidney stones or damage.This is a potential complication of some antibiotics, such as sulfonamides, but not tinidazole.

Choice D is wrong because chewing the tablets thoroughly before swallowing is not necessary for tinidazole.Tinidazole tablets are film-coated and can be swallowed whole with water.

Chewing the tablets may alter their release and absorption, and may also cause a bitter aftertaste.

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Which statement is true regarding narrow spectrum antibiotics?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is administering tetracycline, a broad-spectrum antibiotic, to a patient who has acne vulgaris. The nurse should monitor the patient for which of the following adverse effects of this medication? (Select all that apply.)

Correct Answer is ["A","D"]

Explanation

A nurse is caring for a client who has trichomoniasis and is prescribed tinidazole. Which of the following instructions should the nurse give to the client?

Correct Answer is C

Explanation

Which of the following antiviral medications inhibits neuraminidase enzyme?

The nurse is caring for a patient receiving vancomycin (Vancocin) for treatment of an infection caused by methicillin-resistant Staphylococcus aureus (MRSA). Which assessment finding would indicate a potentially serious adverse reaction to this drug?

The nurse identifies which host factor as the most important when choosing an antimicrobial drug?

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

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

A nurse is caring for a patient who is receiving gentamicin IV for treatment of endocarditis caused by gram-negative bacteria. Which laboratory value should be monitored closely during gentamicin 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.).