When reviewing Ms. Robertson's culture and sensitivity test results, the nurse learns that the bacteria causing Ms. Robertson's infection are sensitive to penicillin. The nurse interprets this result to mean:

penicillin will be effective in treating the infection

penicillin will not be effective in treating the infection

the test must be repeated to obtain accurate results

Ms. Robertson is allergic to penicillin

Answer and Explanation

The Correct Answer is A

A. Penicillin will be effective in treating the infection:

This interpretation is correct. When the culture and sensitivity test results show that the bacteria causing the infection are sensitive to penicillin, it means that penicillin will effectively inhibit the growth of these bacteria, leading to the resolution of the infection. This sensitivity indicates that penicillin is an appropriate and effective choice for treating the infection.

B. Penicillin will not be effective in treating the infection:

This interpretation is incorrect. If the bacteria are sensitive to penicillin, it means that penicillin will be effective in treating the infection. Sensitivity to penicillin indicates that the bacteria are susceptible to the antimicrobial activity of penicillin, and therefore, penicillin is expected to be effective in eradicating the infection.

C. The test must be repeated to obtain accurate results:

This interpretation is not warranted based on the information provided. If the culture and sensitivity test results indicate that the bacteria causing the infection are sensitive to penicillin, there is no need to repeat the test for accuracy. Sensitivity testing provides valuable information about the susceptibility of bacteria to specific antibiotics, helping healthcare providers make informed decisions about appropriate treatment.

D. Ms. Robertson is allergic to penicillin:

This interpretation is unrelated to the information provided in the scenario. The culture and sensitivity test results indicate the susceptibility of bacteria to penicillin, not whether the patient has an allergy to penicillin. Allergy testing is a separate diagnostic process used to determine if a patient is allergic to penicillin or other medications. Sensitivity testing does not provide information about the patient's allergy status.

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Free Nursing Study Resources

Correct Answer is ["125"]

Explanation

To calculate the rate at which the IV pump should be set to deliver 3,000 mL of intravenous fluids over 24 hours, you would divide the total volume (3,000 mL) by the total time (24 hours):

Rate (mL/hr) = Total volume (mL) / Total time (hours)

Rate = 3,000 mL / 24 hours

Rate ≈ 125 mL/hr

Rounding to the nearest whole number, the IV pump should be set to deliver approximately 125 mL/hr.

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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When reviewing Ms. Robertson's culture and sensitivity test results, the nurse learns that the bacteria causing Ms. Robertson's infection are sensitive to penicillin. The nurse interprets this result to mean:

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assisting with care of a client who has a prescription for 3,000 mL of intravenous fluids over the next 24 hr. The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole number)

Correct Answer is ["125"]

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

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