Nursing Elites

1. The nurse is caring for a patient who is taking trimethoprim-sulfamethoxazole (TMP-SMX). The nurse learns that the patient takes an angiotensin-converting enzyme (ACE) inhibitor. To monitor for drug interactions, the nurse will request an order for which laboratory test(s)?

• A. A complete blood count
• B. BUN and creatinine
• C. Electrolytes
• D. Glucose

Correct answer: C

Rationale: The correct answer is 'C. Electrolytes.' When trimethoprim-sulfamethoxazole (TMP-SMX) is taken with an ACE inhibitor, there is an increased risk of hyperkalemia due to the combined effects on potassium levels. Monitoring electrolytes, specifically potassium, is essential to detect and manage this potential drug interaction. Choices A, B, and D are incorrect because while they are important tests in general patient care, they are not specifically indicated to monitor for the drug interaction between TMP-SMX and ACE inhibitors.

2. The nurse is caring for a patient who is ordered to receive PO trimethoprim-sulfamethoxazole (TMP-SMX) 160/800 QID to treat a urinary tract infection caused by E. coli. The nurse will contact the provider to clarify the correct

• A. dose.
• B. drug.
• C. frequency.
• D. route.

Correct answer: C

Rationale: The correct answer is 'frequency.' Trimethoprim-sulfamethoxazole (TMP-SMX) is typically prescribed to be taken twice daily, not four times a day (QID). The dose, drug, and route are already specified in the order, so the nurse should contact the provider to clarify the frequency of administration to ensure optimal treatment for the urinary tract infection caused by E. coli. Choosing 'dose' is incorrect because the dose of 160/800 is already provided in the order. 'Drug' is incorrect because the medication Trimethoprim-sulfamethoxazole (TMP-SMX) is explicitly stated in the prescription. 'Route' is incorrect as PO (by mouth) is also clearly indicated in the prescription.

3. The client is scheduled to begin continuous ambulatory peritoneal dialysis (CAPD). Which of the following statements by the client indicates that more teaching is required?

• A. I will need to limit my intake of protein.
• B. I can skip a dialysis session if I feel tired.
• C. I should increase my intake of potassium-rich foods.
• D. I can eat whatever I want, as long as I take my medications.

Correct answer: B

Rationale: The correct answer is B. Skipping a dialysis session can lead to serious complications as it disrupts the treatment schedule and can result in the accumulation of waste products and fluid in the body. The client must understand the importance of adhering to the prescribed dialysis regimen to maintain optimal health. Choices A, C, and D are incorrect because limiting protein intake, increasing potassium-rich foods, and taking medications do not pose the same risk as skipping dialysis sessions. These aspects are important in the management of peritoneal dialysis but do not outweigh the critical need for regular dialysis sessions to prevent complications.

4. A client with renal insufficiency and a low red blood cell count asks, 'Is my anemia related to the renal insufficiency?' How should the nurse respond?

• A. Red blood cells produce erythropoietin, which increases blood flow to the kidneys.
• B. Your anemia and renal insufficiency are related to inadequate vitamin D and a loss of bone density.
• C. Erythropoietin is usually released from the kidneys and stimulates red blood cell production in the bone marrow.
• D. Kidney insufficiency inhibits active transportation of red blood cells throughout the blood.

Correct answer: C

Rationale: The correct answer is C. Erythropoietin is produced in the kidney and is released in response to decreased oxygen tension in the renal blood supply. Erythropoietin stimulates red blood cell production in the bone marrow. Anemia in renal insufficiency is often due to decreased erythropoietin production. Anemia and renal insufficiency are not manifestations of vitamin D deficiency as stated in choice B. Choice A is incorrect as erythropoietin does not increase blood flow to the kidneys. Choice D is incorrect because kidney insufficiency does not inhibit active transportation of red blood cells throughout the blood; rather, it affects erythropoietin production and subsequent red blood cell formation.

5. A healthcare professional reviews the blood gas results of a client in respiratory distress. The pH is 7.32, and the PCO2 is 50 mm Hg. Which of the following acid-base imbalances does the professional recognize in these findings?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: C

Rationale: In respiratory acidosis, the pH is low (<7.35) and the PCO2 is increased (>45 mm Hg). These findings indicate that the client is experiencing respiratory acidosis, a condition where there is an excess of carbon dioxide in the blood due to inadequate ventilation, commonly seen in respiratory distress. Metabolic acidosis (Choice A) is characterized by a low pH and decreased bicarbonate levels, which is not the case in this scenario. Metabolic alkalosis (Choice B) is associated with a high pH and increased bicarbonate levels. Respiratory alkalosis (Choice D) is marked by a high pH and decreased PCO2, opposite to the values presented in the blood gas results of this client.

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