Nursing Elites

1. The patient is taking low-dose erythromycin prophylactically and will start cefaclor for treating an acute infection. The nurse should discuss this with the provider because taking both medications simultaneously can cause which effect?

• A. Decreased effectiveness of cefaclor.
• B. Increased effectiveness of cefaclor.
• C. Decreased effectiveness of erythromycin.
• D. Increased effectiveness of erythromycin.

Correct answer: A

Rationale: When erythromycin and cefaclor are taken together, erythromycin can inhibit the metabolism of cefaclor, leading to elevated cefaclor levels and potentially causing adverse effects. This results in a decrease in the effectiveness of cefaclor. Therefore, the nurse should discuss this potential drug interaction with the provider to consider an alternative treatment or adjust the dosages to prevent complications. Choices B, C, and D are incorrect because the concern lies with the effect on cefaclor when combined with erythromycin, not the effect on erythromycin itself.

2. A client is scheduled for a barium swallow (esophagography) in 2 days. The nurse, providing preprocedure instructions, should tell the client to:

• A. Eat a regular supper and breakfast
• B. Remove all metal and jewelry before the test
• C. Expect diarrhea for a few days after the procedure
• D. Take all oral medications as scheduled with milk on the day of the test

Correct answer: B

Rationale: The correct answer is B: 'Remove all metal and jewelry before the test.' Before a barium swallow procedure, the client should fast for 8 to 12 hours to ensure the stomach and intestines are empty for optimal visualization. Removing all metal and jewelry is essential to prevent any interference with x-ray imaging. Choice A is incorrect because the client should fast, not eat supper and breakfast, before the test. Choice C is incorrect as diarrhea is not an expected outcome of a barium swallow. Choice D is incorrect as the client should not take any oral medications with milk on the day of the test to ensure accurate test results.

3. A client is tested for HIV with the use of an enzyme-linked immunosorbent assay (ELISA), and the test result is positive. The nurse should tell the client that:

• A. HIV infection has been confirmed
• B. The client probably has an opportunistic infection
• C. The test will need to be confirmed with the use of a Western blot
• D. A positive test is a normal result and does not mean that the client is infected with HIV

Correct answer: C

Rationale: When an ELISA test for HIV is positive, it is essential to confirm the result with a Western blot. The Western blot is the confirmatory test for HIV. Choice A is incorrect because a positive ELISA test does not confirm HIV infection. Choice B is incorrect as it assumes a different diagnosis. Choice D is incorrect because a positive ELISA test does indicate potential HIV infection and requires confirmation.

4. A client with acute kidney injury has a blood pressure of 76/55 mm Hg. The health care provider ordered 1000 mL of normal saline to be infused over 1 hour to maintain perfusion. The client is starting to develop shortness of breath. What is the nurse’s priority action?

• A. Calculate the mean arterial pressure (MAP).
• B. Ask for insertion of a pulmonary artery catheter.
• C. Take the client’s pulse.
• D. Slow down the normal saline infusion.

Correct answer: D

Rationale: The nurse should recognize that the client may be developing fluid overload and respiratory distress due to the rapid normal saline infusion. The priority action is to slow down the infusion to prevent worsening respiratory distress and potential fluid overload. While calculating the mean arterial pressure (MAP) is important to assess perfusion, addressing the immediate respiratory distress takes precedence. Inserting a pulmonary artery catheter would provide detailed hemodynamic information but is not the initial step in managing acute respiratory distress. Monitoring vital signs, including the client's pulse, is crucial after adjusting the intravenous infusion to ensure a safe response to the intervention.

5. In a patient with chronic kidney disease, which of the following is a common electrolyte imbalance?

• A. Hyperkalemia.
• B. Hypokalemia.
• C. Hypernatremia.
• D. Hyponatremia.

Correct answer: A

Rationale: Hyperkalemia is a common electrolyte imbalance in chronic kidney disease. In chronic kidney disease, the kidneys' reduced function leads to the decreased excretion of potassium, resulting in elevated serum potassium levels. This can be dangerous as hyperkalemia can lead to life-threatening arrhythmias. Hypokalemia (Choice B) is less common in chronic kidney disease as the impaired kidneys tend to retain potassium. Hypernatremia (Choice C) is more commonly seen in conditions such as dehydration, not primarily in chronic kidney disease. Hyponatremia (Choice D) is also possible in chronic kidney disease but is less common compared to hyperkalemia.

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