Nursing Elites

1. A client is receiving intermittent bolus feedings via a nasogastric tube. In which position should the nurse place the client once the feeding is complete?

• A. Supine
• B. Head of bed flat
• C. Left lateral position
• D. Head of bed elevated 30 to 45 degrees

Correct answer: B

Rationale: After intermittent bolus feedings through a nasogastric tube, the correct position for the client is to keep the head of the bed flat. This position helps prevent vomiting and aspiration. Placing the client in a supine position (choice A) can increase the risk of aspiration. The left lateral position (choice C) is not typically used after nasogastric tube feedings. Elevating the head of the bed 30 to 45 degrees (choice D) is suitable for continuous tube feedings to reduce the risk of aspiration, but for intermittent bolus feedings, keeping the head of the bed flat is preferred to prevent regurgitation and aspiration.

2. Which symptoms should the nurse expect a client to exhibit who is diagnosed with a pheochromocytoma?

• A. Numbness, tingling, and cramps in the extremities.
• B. Headache, diaphoresis, and palpitations.
• C. Cyanosis, fever, and classic signs of shock.
• D. Nausea, vomiting, and muscular weakness.

Correct answer: B

Rationale: Correct. Pheochromocytoma is a catecholamine-secreting non-cancerous tumor of the adrenal medulla. The classic triad of symptoms includes headache, diaphoresis (excessive sweating), and palpitations, which result from the overproduction of catecholamines like epinephrine and norepinephrine. Numbness, tingling, and cramps in the extremities (Option A) are not characteristic of pheochromocytoma. Cyanosis, fever, and classic signs of shock (Option C) are not typical symptoms of this condition. Nausea, vomiting, and muscular weakness (Option D) are not commonly associated with pheochromocytoma.

3. A nurse reviews the laboratory findings of a client with a urinary tract infection. The laboratory report notes a “shift to the left” in the client’s white blood cell count. Which action should the nurse take?

• A. Request that the laboratory perform a differential analysis on the white blood cells.
• B. Notify the provider and start an intravenous line for parenteral antibiotics.
• C. Collaborate with the unlicensed assistive personnel (UAP) to strain the client’s urine for renal calculi.
• D. Assess the client for a potential allergic reaction and anaphylactic shock.

Correct answer: B

Rationale: A “shift to the left” in a white blood cell count indicates an increase in band cells, which is typically associated with urosepsis. In this scenario, the nurse should notify the provider and initiate IV antibiotics as a left shift is often seen in severe infections like urosepsis. Requesting a differential analysis on white blood cells would not be the immediate action needed in response to a left shift. Collaborating to strain urine for renal calculi is unrelated to the situation of a left shift in white blood cells due to urosepsis. Assessing for allergic reactions and anaphylactic shock is not the priority as a left shift is not indicative of an allergic response; it is associated with an increase in band cells, not eosinophils.

4. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?

• A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
• B. A serum drug level greater than the MEC broadens the spectrum of the drug.
• C. A serum drug level greater than the MEC helps eradicate bacterial infections.
• D. A serum drug level greater than the MEC increases the therapeutic index.

Correct answer: C

Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.

5. The nurse is caring for a newly admitted patient who has severe gastroenteritis. The patient’s electrolytes reveal a serum sodium level of 140 mEq/L and a serum potassium level of 3.5 mEq/L. The nurse receives an order for intravenous 5% dextrose and normal saline with 20 mEq/L potassium chloride to infuse at 125 mL per hour. Which action is necessary prior to administering this fluid?

• A. Evaluate the patient’s urine output.
• B. Contact the provider to order arterial blood gases.
• C. Request an order for an initial potassium bolus.
• D. Suggest a diet low in sodium and potassium.

Correct answer: A

Rationale: Prior to administering IV fluids containing potassium, it is crucial to evaluate the patient's urine output. If the urine output is less than 25 mL/hr or 600 mL/day, there is a risk of potassium accumulation. Patients with low urine output should not receive IV potassium to prevent potential complications. Contacting the provider for arterial blood gases is unnecessary in this scenario as it does not directly relate to the administration of IV fluids with potassium. Administering potassium as a bolus is not recommended due to potential adverse effects. While dietary considerations are important, suggesting a low-sodium and low-potassium diet is not the immediate action required before administering IV fluids with potassium chloride.

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