The nurse checks the patient’s laboratory work prior to administering a dose of vancomycin and finds that the trough vancomycin level is 24 mcg/mL. What will the nurse do next?

Hold the drug, and administer 4 hours later.

Administer the vancomycin as ordered.

Hold the drug, and notify the prescriber.

Repeat the test to verify results.

Answer and Explanation

The Correct Answer is C

Choice A rationale:

Holding the drug and administering it 4 hours later is not the appropriate action. The trough vancomycin level of 24 mcg/mL is higher than the recommended range of 10-20 mcg/mL, indicating potential risk for toxicity. Administering the drug later does not address the immediate concern of a high trough level.

Choice B rationale:

Administering the vancomycin as ordered is not the correct action in this case. The trough level is above the recommended range, which could lead to vancomycin toxicity. The nurse should not administer the medication without addressing the high trough level. Choice C rationale:

This is the correct action. The nurse should hold the drug and notify the prescriber because the trough vancomycin level is higher than the recommended range. The prescriber can then make a decision based on this information, which may include adjusting the dose, extending the dosing interval, or ordering additional tests.

Choice D rationale:

While repeating the test to verify results might be done eventually, it should not be the immediate next step. The nurse has a responsibility to ensure patient safety, and with a trough level above the recommended range, the priority is to prevent potential toxicity. Therefore, the nurse should hold the drug and notify the prescriber.

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Correct Answer is A

Explanation

Choice A rationale:

Rifampin Rifampin is an antitubercular drug that is effective against all strains of Mycobacterium tuberculosis. It works by inhibiting the synthesis of RNA in the bacteria, preventing them from reproducing. However, it does not typically cause a decrease in visual acuity.

Choice B rationale:

Ethambutol Ethambutol is an antitubercular drug that can cause ocular toxicity in the form of visual field changes. It is known to induce toxic optic neuropathy, which is quite common and can lead to a decrease in visual acuity. Patients on Ethambutol therapy are advised to report any changes in visual acuity or eye discomfort immediately to their healthcare provider.

Choice C rationale:

Streptomycin Streptomycin is an aminoglycoside antibiotic used in the treatment of tuberculosis. It works by inhibiting protein synthesis in bacteria. While it can cause side effects such as ototoxicity and nephrotoxicity, it is not typically associated with a decrease in visual acuity.

Choice D rationale:

Isoniazid Isoniazid is a first-line antitubercular drug that works by inhibiting the synthesis of mycolic acids in the cell wall of Mycobacterium tuberculosis. While it can cause peripheral neuropathy, it is not typically associated with a decrease in visual acuity.

A. “I haven’t had anything to eat or drink since last night.” B. “The last time I voided it was painful.” C. “I took my metformin before breakfast.” D. “I took a laxative yesterday.”

Correct Answer is C

Explanation

Choice A rationale:

The client stating, “I haven’t had anything to eat or drink since last night” is not a cause for concern. This is because patients are often advised to fast before undergoing certain medical procedures or tests, including an intravenous pyelogram (IVP).

Fasting helps to ensure that the test results are accurate and not influenced by recent food or drink consumption.

Choice B rationale:

The client expressing that “The last time I voided it was painful” could be related to their recurrent kidney stones. Kidney stones can cause discomfort or pain during urination. However, this statement does not necessarily require additional data collection in the context of an IVP. The pain could be a symptom of the kidney stones rather than a contraindication for the IVP1.

Choice C rationale:

The statement “I took my metformin before breakfast” is of concern. Metformin is a medication used to treat type 2 diabetes. It is important for the nurse to collect additional data about this statement because metformin can potentially interact with the iodine-based contrast dye used in an IVP. This interaction can increase the risk of lactic acidosis, a serious and potentially lifethreatening condition. Therefore, patients are often advised to stop taking metformin before and for a couple of days after having an IVP12. Choice D rationale:

The client mentioning, “I took a laxative yesterday” is not necessarily alarming. Laxatives are often used before an IVP to clear the bowels, which helps to ensure clear images during the procedure. Therefore, this statement does not require additional data collection in the context of an IVP1.

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The nurse checks the patient’s laboratory work prior to administering a dose of vancomycin and finds that the trough vancomycin level is 24 mcg/mL. What will the nurse do next?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

When monitoring patients on antitubercular drug therapy, the nurse knows that which drug may cause a decrease in visual acuity?

Correct Answer is A

Explanation

A nurse is caring for a client who has recurrent kidney stones and a history of diabetes mellitus. The client is scheduled for an intravenous Pyelogram (IVP). The nurse should collect additional data about which of the following statements made by the client?

Correct Answer is C

Explanation

The nurse checks the patient’s laboratory work prior to administering a dose of vancomycin and finds that the trough vancomycin level is 24 mcg/mL. What will the nurse do next?

Phenytoin has a narrow therapeutic index. The nurse recognizes that this characteristic indicates which of these?

The nurse is preparing to educate a patient who has just been prescribed a sulfonamide. Which statements should be included in the teaching plan?

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A nurse is reinforcing teaching about insulin injections with a client who is newly diagnosed with type I diabetes mellitus. Which of the following information should the nurse include about site selection?

A 79-year-old patient is receiving a quinolone for treatment of a complicated incision infection. For which adverse effect associated with these drugs should the nurse monitor?

When given an intravenous medication, the patient asks the nurse, “I usually take pills. Why does this medication have to be given in the arm?” What is the nurse’s best response?