Which of the following can be determined using culture and sensitivity tests?

Decision to administer either a bactericidal or bacteriostatic drug

Microbial susceptibility to an anti-infective

Duration of the antibacterial drug therapy

Decision to administer empiric therapy

Answer and Explanation

The Correct Answer is B

A. Decision to administer either a bactericidal or bacteriostatic drug:

Culture and sensitivity tests provide information about the susceptibility of the microorganism to specific antimicrobial agents. Based on this information, healthcare providers can choose between bactericidal (agents that kill bacteria) or bacteriostatic (agents that inhibit bacterial growth) drugs. For example, if the culture indicates that the microorganism is susceptible to a bactericidal drug, such as penicillin, the healthcare provider may choose to administer that type of drug.

B. Microbial susceptibility to an anti-infective:

This option accurately describes one of the primary purposes of culture and sensitivity tests. These tests determine whether the microorganism causing the infection is susceptible or resistant to specific antimicrobial agents. This information guides the selection of the most appropriate anti-infective therapy to effectively treat the infection.

C. Duration of the antibacterial drug therapy:

While culture and sensitivity tests provide valuable information about microbial susceptibility to antimicrobial agents, they do not specifically determine the duration of antibacterial drug therapy. The duration of therapy is often determined based on factors such as the type and severity of the infection, the patient's response to treatment, and clinical guidelines, rather than solely on the results of culture and sensitivity tests.

D. Decision to administer empiric therapy:

Empiric therapy involves the initiation of antimicrobial treatment based on clinical judgment and knowledge of likely pathogens before culture and sensitivity results are available. Culture and sensitivity tests help confirm the causative microorganism and guide subsequent treatment decisions, including adjustments to therapy based on the results. Therefore, while culture and sensitivity tests inform decisions regarding antimicrobial therapy, they do not directly determine whether empiric therapy should be initiated.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is C

Explanation

A. Ibuprofen:

Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) commonly used to relieve pain and reduce inflammation. There are no significant interactions reported between erythromycin and ibuprofen.

B. Lasix (Furosemide):

Lasix is a diuretic medication used to treat fluid retention (edema) and high blood pressure. There are no significant interactions reported between erythromycin and furosemide.

C. Lovastatin:

Lovastatin is a statin medication used to lower cholesterol levels. Erythromycin can increase the levels of lovastatin in the blood by inhibiting its metabolism through the CYP3A4 enzyme. This can lead to an increased risk of statin-related side effects, including muscle pain and weakness, and in rare cases, rhabdomyolysis.

D. Lisinopril:

Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor used to treat high blood pressure and heart failure. There are no significant interactions reported between erythromycin and lisinopril.

A. Keep the serum drug level within the therapeutic margin B. increase the therapeutic effect of the drug by gradually decreasing the drug dose C. Provide maximum physical comfort to the patient D. Treat the main disorder with no psychological distress to the patient

Correct Answer is A

Explanation

A. Keep the serum drug level within the therapeutic margin:

This is the correct goal of monitoring peak and trough levels during antibacterial therapy. The therapeutic margin refers to the range of drug concentrations in the bloodstream that achieves optimal therapeutic effects while avoiding toxicity. By monitoring peak and trough levels, healthcare providers can adjust the dosing regimen to maintain drug levels within this therapeutic margin.

B. Increase the therapeutic effect of the drug by gradually decreasing the drug dose:

This statement is incorrect. Monitoring peak and trough levels is not about increasing the therapeutic effect of the drug by gradually decreasing the drug dose. Instead, it's about ensuring that the drug levels are maintained within the appropriate therapeutic range to achieve optimal efficacy without causing adverse effects.

C. Provide maximum physical comfort to the patient:

Monitoring peak and trough levels is not primarily aimed at providing physical comfort to the patient. While optimizing drug therapy can contribute to improved clinical outcomes and patient well-being, the goal of monitoring these levels is specifically related to achieving therapeutic drug concentrations.

D. Treat the main disorder with no psychological distress to the patient:

This statement is unrelated to the goal of monitoring peak and trough levels during antibacterial therapy. While psychological distress may be a consideration in patient care, the primary goal of monitoring drug levels is to ensure therapeutic efficacy and safety.

View Question and Answer

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Which of the following can be determined using culture and sensitivity tests?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient at a rehabilitation center is prescribed erythromycin. The nurse is reviewing the patient's medication list, checking to see if there are medications that should not be taken with this antibiotic. One medication is found. What medication should not be taken with erythromycin?

Correct Answer is C

Explanation

Which of the following is the goal of monitoring peak and trough levels during antibacterial therapy?

Correct Answer is A

Explanation

The nurse is discharging a client to home with a prescription for clarithromycin (Biaxin). The nurse knows that teaching has been effective when the client states:

Which of the following can be determined using culture and sensitivity tests?

The term "mutations" refers to:

A nurse is reinforcing teaching about vancomycin with a client who has an infection. Which of the following information should the nurse include in the teaching?

When asked if there are any regulatory controls on herbal or dietary supplements, the nurse responds to the client by informing him that herbal and dietary supplements are regulated by the:

Before administering cefazolin (Ancef), the nurse checks for a previous allergic reaction to:

Which of the following types of patients are more vulnerable to drug toxicity?

Which of the following complaints by a man taking gentamycin would be most indicative that he is experiencing ototoxicity?