Nursing Elites

1. A client has just had a central line catheter placed that is specific for hemodialysis. What is the most appropriate action by the nurse?

• A. Use the catheter for the next laboratory blood draw.
• B. Monitor the central venous pressure through this line.
• C. Access the line for the next intravenous medication.
• D. Place a heparin or heparin/saline dwell after hemodialysis.

Correct answer: D

Rationale: The most appropriate action for the nurse after a central line catheter placement for hemodialysis is to place a heparin or heparin/saline dwell after hemodialysis treatment. This helps prevent clot formation in the line and maintain patency for future use. Using the catheter for blood draws is not recommended as it may increase the risk of infection. Monitoring central venous pressure is not indicated with this type of catheter. Accessing the line for medications is also not recommended to prevent complications and ensure the line is solely used for hemodialysis purposes.

2. A client with a history of lung disease is at risk for respiratory acidosis. For which of the following signs and symptoms does the nurse assess this client?

• A. Disorientation and dyspnea
• B. Drowsiness, headache, and tachypnea
• C. Tachypnea, dizziness, and paresthesias
• D. Dysrhythmias and decreased respiratory rate and depth

Correct answer: A

Rationale: The correct answer is A: Disorientation and dyspnea. In respiratory acidosis, the retention of carbon dioxide leads to an increase in carbonic acid, causing the pH of the blood to decrease. This can result in symptoms such as dyspnea (difficulty breathing) due to hypoxia and disorientation due to the effects of hypercapnia (elevated carbon dioxide levels) on the brain. Choice B is incorrect because while drowsiness and tachypnea can be present in respiratory acidosis, headache is not a common symptom. Choice C is incorrect because dizziness and paresthesias are not typical symptoms of respiratory acidosis. Choice D is incorrect because dysrhythmias and a decreased respiratory rate and depth are more commonly associated with respiratory alkalosis, not respiratory acidosis.

3. The nurse is caring for several patients who are receiving antibiotics. Which order will the nurse question?

• A. Azithromycin (Zithromax) 500 mg IV in 500 mL of fluid
• B. Azithromycin (Zithromax) 500 mg PO once daily
• C. Erythromycin 300 mg IM QID
• D. Erythromycin 300 mg PO QID

Correct answer: C

Rationale: The nurse should question the order for Erythromycin 300 mg IM QID. Erythromycin and other macrolides should not be given intramuscularly because they cause painful tissue irritation. Options A and B are correct routes for Azithromycin, either intravenously or orally. Option D is a correct route for Erythromycin, which is orally.

4. A client in the intensive care unit is started on continuous venovenous hemofiltration (CVVH). Which finding should prompt immediate action by the nurse?

• A. Blood pressure of 76/58 mm Hg
• B. Sodium level of 138 mEq/L
• C. Potassium level of 5.5 mEq/L
• D. Pulse rate of 90 beats/min

Correct answer: A

Rationale: The correct answer is A: Blood pressure of 76/58 mm Hg. In a client undergoing continuous venovenous hemofiltration (CVVH), hypotension can be a significant concern if replacement fluid does not adequately maintain blood pressure. The nurse should take immediate action to address hypotension to prevent further complications. The sodium level of 138 mEq/L is within normal range, and a potassium level of 5.5 mEq/L, while slightly elevated, may be expected in a patient with acute kidney injury. A pulse rate of 90 beats/min falls within the normal range and does not typically require immediate intervention in this context.

5. A female patient who is allergic to penicillin will begin taking an antibiotic to treat a lower respiratory tract infection. The patient tells the nurse that she almost always develops a vaginal yeast infection when she takes antibiotics and that she will take fluconazole (Diflucan) with the antibiotic being prescribed. Which macrolide should the nurse question for this patient?

• A. Azithromycin (Zithromax)
• B. Clarithromycin (Biaxin)
• C. Erythromycin (E-Mycin)
• D. Fidaxomicin (Dificid)

Correct answer: C

Rationale: The nurse should question the prescription of erythromycin for this patient. When erythromycin is given concurrently with fluconazole, erythromycin blood concentration and the risk of sudden cardiac death increase. Therefore, it is not recommended to use erythromycin in combination with fluconazole for this patient. Azithromycin, clarithromycin, and fidaxomicin are alternative macrolide antibiotics that can be considered for this patient without the same risk of interactions when used with fluconazole.

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