The nurse explains that is regard to regulation by the Dietary Supplement Health and Education Act, dietary supplements:

do not have to demonstrate effectiveness

are determined to be safe before being placed on the market

are checked for label accuracy

are tested prior to marketing

Answer and Explanation

The Correct Answer is A

Do not have to demonstrate effectiveness:

This statement is generally true under DSHEA regulations. Unlike pharmaceutical drugs, dietary supplements are not required to undergo rigorous testing to demonstrate their effectiveness in treating, preventing, or curing specific health conditions before they are marketed. However, manufacturers are prohibited from making unsubstantiated claims about the effectiveness of their products.

B. Are determined to be safe before being placed on the market:

Under DSHEA regulations, dietary supplement manufacturers are responsible for ensuring the safety of their products before they are marketed. However, unlike pharmaceutical drugs, dietary supplements do not undergo premarket approval by the Food and Drug Administration (FDA) to verify their safety and efficacy. Instead, manufacturers are required to notify the FDA of their intent to market a new dietary ingredient (NDI) and provide evidence of the ingredient’s safety.

C. Are checked for label accuracy:

The FDA regulates dietary supplements to ensure that their labels are accurate and truthful. However, the extent of label accuracy checking varies, and the FDA does not routinely test every dietary supplement product on the market. Instead, the FDA relies on postmarket surveillance, consumer complaints, and other mechanisms to identify and address inaccuracies or violations of labeling regulations.

D. Are tested prior to marketing:

Unlike pharmaceutical drugs, dietary supplements are not required to undergo premarket testing to demonstrate their safety or efficacy before they are marketed. While manufacturers are responsible for ensuring the safety of their products, there is no formal premarket testing requirement under DSHEA regulations.

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Correct Answer is D

Explanation

A. Not affected:

This choice suggests that taking ciprofloxacin with antacids does not alter its absorption. However, this is not correct. When ciprofloxacin is taken with antacids containing certain ions (such as aluminum, magnesium, or calcium), the absorption of ciprofloxacin can indeed be affected due to the formation of insoluble complexes, leading to decreased absorption.

B. Delayed:

This choice implies that taking ciprofloxacin with antacids delays its absorption. While it's true that the interaction between ciprofloxacin and certain antacids can alter absorption, the main effect is not typically a delay in absorption but rather a decrease due to the formation of insoluble complexes. Therefore, while "delayed" may somewhat describe the effect, it doesn't fully capture the nature of the interaction.

C. Increased:

This choice suggests that taking ciprofloxacin with antacids increases its absorption. However, this is not accurate. Antacids containing aluminum, magnesium, or calcium can interfere with the absorption of ciprofloxacin by forming insoluble complexes with the drug, leading to decreased absorption rather than an increase.

D. Decreased:

This choice correctly identifies the effect of taking ciprofloxacin with antacids. When ciprofloxacin is taken concurrently with antacids containing aluminum, magnesium, or calcium, the absorption of ciprofloxacin is decreased. The ions in the antacids bind with ciprofloxacin in the gastrointestinal tract, forming insoluble complexes that are poorly absorbed, thereby reducing the effectiveness of the antibiotic.

A. kanamycin (Kantrex) B. vancomycin C. streptomycin D. penicillin

Correct Answer is B

Explanation

A. Kanamycin (Kantrex):

Kanamycin is an aminoglycoside antibiotic, but it is not commonly used as a first-line treatment for MRSA infections. Aminoglycosides are not typically preferred for treating MRSA because they are not as effective against these resistant bacteria compared to other agents like vancomycin.

B. Vancomycin:

Vancomycin is a glycopeptide antibiotic and is considered the drug of choice for the treatment of MRSA infections, including serious bloodstream infections, pneumonia, and skin and soft tissue infections. It works by inhibiting cell wall synthesis in bacteria, including MRSA.

C. Streptomycin:

Streptomycin is another aminoglycoside antibiotic, similar to kanamycin. Like kanamycin, streptomycin is not typically used as a first-line treatment for MRSA infections because it is less effective against resistant strains compared to other agents like vancomycin.

D. Penicillin:

Penicillin and other beta-lactam antibiotics are ineffective against MRSA because MRSA is resistant to these antibiotics, including methicillin. Therefore, penicillin would not be an appropriate choice for treating MRSA infections.

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The nurse explains that is regard to regulation by the Dietary Supplement Health and Education Act, dietary supplements:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse instructs the patient that if ciprofloxacin (Cipro) is taken with antacids, absorption is

Correct Answer is D

Explanation

The nurse is admitting a client to the acute care floor with methicillin-resistant S. aureus. The nurse would expect the physician to order which of the following medications for the client?

Correct Answer is B

Explanation

The nurse is instructing a client who has been prescribed tetracycline (Sumycin). What should the nurse advise this client to avoid while taking this medication?

What advice should the nurse offer a patient who takes ciprofloxacin and has diarrhea?

What is the best method of monitoring therapeutic blood levels of vancomycin during therapy?

A nurse is reinforcing teaching with a client who reports motion sickness about using an herbal supplement. The nurse should identify that the client can use which of the following herbal supplements to help control nausea?

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

A client has been diagnosed with tuberculosis. How long does the nurse anticipate this client will require treatment?

Which adverse effect unique to vancomycin is caused by histamine release?

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?