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Which of the following differentiates a bacteriostatic drug from a bactericidal drug?

A.

Bacteriostatics are narrow spectrum drugs and bactericidal drugs are broad spectrum

B.

Bacteriostatic drugs inhibit bacterial growth, and bactericidal drugs actually kill bacteria

C.

Bacteriostatics work by inhibiting protein synthesis and bactericidal drugs work by inhibiting nucleic acid synthesis

D.

Bacteriostatic drugs actually kill bacteria and bactericidal drugs inhibit bacterial growth

Answer and Explanation

The Correct Answer is B

A. Bacteriostatics are narrow spectrum drugs, and bactericidal drugs are broad spectrum:

This statement is incorrect. The spectrum of activity (narrow vs. broad) of an antibiotic refers to the range of bacterial species that it can target, not whether it is bacteriostatic or bactericidal.

B. Bacteriostatic drugs inhibit bacterial growth, and bactericidal drugs actually kill bacteria:

This statement is correct. Bacteriostatic drugs work by inhibiting the growth and reproduction of bacteria without directly killing them, whereas bactericidal drugs directly kill bacteria.

C. Bacteriostatics work by inhibiting protein synthesis, and bactericidal drugs work by inhibiting nucleic acid synthesis:

This statement is incorrect. Both bacteriostatic and bactericidal drugs can target various bacterial cellular processes, including protein synthesis, nucleic acid synthesis, cell wall synthesis, and others. The mechanism of action is not a definitive factor in distinguishing between bacteriostatic and bactericidal drugs.

D. Bacteriostatic drugs actually kill bacteria, and bactericidal drugs inhibit bacterial growth:

This statement is incorrect. It contradicts the established definitions of bacteriostatic and bactericidal drugs. Bacteriostatic drugs inhibit bacterial growth without killing the bacteria, while bactericidal drugs directly kill bacteria.


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Related Questions

Correct Answer is B

Explanation

A. Never take with prescription medications:

This statement is not accurate. Many herbal products can interact with prescription medications, potentially leading to adverse effects or reduced efficacy. However, avoiding taking herbal products with prescription medications altogether may not be practical or necessary in all cases. Instead, it's essential to assess for potential interactions and consult with healthcare professionals.

B. Use only one herbal preparation at a time:

This is the correct approach. Using only one herbal preparation at a time allows for better identification of any allergic reactions or adverse effects. If multiple herbal products are taken simultaneously, it can be challenging to determine which product is causing a particular reaction. Starting with one product also simplifies monitoring for efficacy and safety.

C. Take less than the recommended dose initially:

While starting with a lower dose initially may be a prudent approach for some individuals, it is not necessarily the best way to identify allergic or adverse reactions. Taking less than the recommended dose may not provide a full assessment of the product's effects and may not adequately identify potential adverse reactions.

D. Check with a reputable pharmacist:

Consulting with a reputable pharmacist is essential for obtaining information about herbal products, including potential interactions, side effects, and recommended dosages. While a pharmacist can provide valuable guidance, they may not be present during the initial use of the herbal product to monitor for adverse reactions directly.

Correct Answer is ["50"]

Explanation

To calculate the infusion rate in gtt/min, the nurse needs to use the formula:

Infusion rate (gtt/min) = Volume (mL) x Drop factor (gtt/mL) / Time (min)

Plugging in the given values, we get:

Infusion rate (gtt/min) = 400 mL x 60 gtt/mL / 480 min

Simplifying, we get:

Infusion rate (gtt/min) = 50 gtt/min

Therefore, the nurse should set the manual IV infusion to deliver 50 gtt/min.

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