A nurse is reinforcing teaching with a client about treatment of methicillin-resistant Staphylococcus aureus (MRSA). Which of the following information should the nurse include in the teaching?

Antibiotic dosages below the minimum concentration are prescribed.

Broad-spectrum antibiotics are used whenever possible.

Antibiotics are prescribed only when a viral infection is present.

Infections become resistant to high doses of antibiotics

Answer and Explanation

The Correct Answer is D

A. Antibiotic dosages below the minimum concentration are prescribed:

This statement is incorrect. When treating MRSA infections, it's essential to prescribe antibiotic dosages that achieve adequate concentrations to effectively combat the resistant bacteria. Suboptimal dosages or inadequate duration of treatment can contribute to treatment failure and the development of antibiotic resistance. Therefore, the nurse should emphasize the importance of prescribing appropriate dosages of antibiotics for MRSA infections.

B. Broad-spectrum antibiotics are used whenever possible:

This statement is not accurate. While broad-spectrum antibiotics may be effective against a wide range of bacteria, they are not always the preferred choice for treating MRSA infections. MRSA is resistant to many antibiotics, including those commonly used as broad-spectrum agents. Therefore, the treatment of MRSA typically involves antibiotics that are specifically effective against this resistant strain, such as vancomycin, daptomycin, linezolid, or other agents based on susceptibility testing. Therefore, the nurse should educate the client that specific antibiotics effective against MRSA are used, rather than relying solely on broad-spectrum antibiotics.

C. Antibiotics are prescribed only when a viral infection is present:

This statement is incorrect. Antibiotics are not effective against viral infections, including those caused by viruses such as influenza or the common cold. MRSA is a bacterial infection, and antibiotics are indicated for its treatment. However, it's essential to use antibiotics judiciously and only when necessary to avoid contributing to antibiotic resistance. The nurse should educate the client that antibiotics are prescribed for bacterial infections like MRSA, but they are not appropriate for viral infections.

D. Infections become resistant to high doses of antibiotics:

This statement is accurate. Overuse or inappropriate use of antibiotics, including high doses, can contribute to the development of antibiotic resistance. Bacteria like MRSA can acquire resistance mechanisms that render antibiotics ineffective, even at high doses. Therefore, it's crucial to use antibiotics judiciously, following appropriate dosing guidelines and duration of treatment, to minimize the risk of antibiotic resistance. The nurse should include this information in the teaching to emphasize the importance of responsible antibiotic use in the management of MRSA infections.

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Correct Answer is D

Explanation

A.Alcohol:

Alcohol consumption does not directly reduce the absorption of ciprofloxacin. However, alcohol can interact with certain medications and may exacerbate side effects such as dizziness, drowsiness, and gastrointestinal upset. It’s generally advisable to avoid excessive alcohol consumption while taking ciprofloxacin, but alcohol itself does not significantly affect the absorption of the medication.

B. Intense physical exertion:

Intense physical exertion is unlikely to directly reduce the absorption of ciprofloxacin. However, gastrointestinal motility may increase during intense exercise, potentially affecting the absorption of oral medications. In some cases, gastrointestinal disturbances associated with physical exertion may affect the absorption of ciprofloxacin, but this effect is generally minor and not a significant concern for most individuals.

C. Fruit juices, in particular grapefruit juice:

Grapefruit juice is known to interact with certain medications by inhibiting intestinal enzymes responsible for drug metabolism, leading to increased drug concentrations in the bloodstream. However, ciprofloxacin is not significantly affected by grapefruit juice. In fact, fruit juices, including grapefruit juice, are generally not known to reduce the absorption of ciprofloxacin.

D. Antacids or mineral supplements:

Antacids and mineral supplements containing aluminum, magnesium, calcium, or iron can significantly reduce the absorption of ciprofloxacin when taken concurrently. These substances can form complexes with ciprofloxacin in the gastrointestinal tract, reducing its bioavailability. Therefore, it’s recommended to avoid taking antacids or mineral supplements containing these minerals within a few hours before or after taking ciprofloxacin to avoid interference with its absorption.

A. Penicillins B. Fluoroquinolones C. Aminoglycosides D. Sulfonamides

Correct Answer is B

Explanation

A. Penicillins:

Penicillins are a class of antibiotics commonly used to treat various bacterial infections. While they are generally well-tolerated and have a low incidence of adverse effects, they are not typically associated with cartilage toxicity or tendon rupture, including the Achilles tendon.

B. Fluoroquinolones:

Fluoroquinolones are broad-spectrum antibiotics known for their effectiveness against a wide range of bacteria. However, they are associated with several significant adverse effects, including cartilage toxicity and tendon rupture. These adverse effects, particularly tendon rupture, are most commonly observed in weight-bearing tendons such as the Achilles tendon. Fluoroquinolones should be used cautiously, especially in populations at higher risk for tendon injuries.

C. Aminoglycosides:

Aminoglycosides are another class of antibiotics used to treat severe bacterial infections. While they have their own set of potential adverse effects, such as nephrotoxicity and ototoxicity, they are not associated with cartilage toxicity or tendon rupture.

D. Sulfonamides:

Sulfonamides are antibiotics that inhibit bacterial growth by interfering with the synthesis of folate. While they can cause various adverse effects, including skin reactions and hematologic abnormalities, they are not associated with cartilage toxicity or tendon rupture.

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A nurse is reinforcing teaching with a client about treatment of methicillin-resistant Staphylococcus aureus (MRSA). Which of the following information should the nurse include in the teaching?

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Naxlex Comprehensive Predictor Exams

Which of the following would reduce the absorption of ciprofloxacin?

Correct Answer is D

Explanation

Which class of antibiotic is associated with cartilage toxicity and rupture of the Achilles tendon?

Correct Answer is B

Explanation

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A nurse is reinforcing teaching with a client about treatment of methicillin-resistant Staphylococcus aureus (MRSA). Which of the following information should the nurse include in the teaching?

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