Nursing Elites

1. A CD4+ lymphocyte count is performed on a client infected with HIV. The results of the test indicate a CD4+ count of 450 cells/L. The nurse interprets this test result as indicating:

• A. Improvement in the client
• B. The need for antiretroviral therapy
• C. The need to discontinue antiretroviral therapy
• D. An effective response to the treatment for HIV

Correct answer: B

Rationale: A CD4+ count of 450 cells/L is below the normal range (500-1600 cells/mcL), indicating a decline in immune function in the client. Antiretroviral therapy is recommended when the CD4+ count falls below 500 cells/mcL or below 25%, or when the client displays symptoms of HIV. Therefore, the interpretation of this test result suggests that the client requires antiretroviral therapy to manage the HIV infection. Choices A, C, and D are incorrect because a CD4+ count of 450 cells/L does not signify improvement, discontinuation of therapy, or an effective response to treatment for HIV.

2. Which of the following lab results is most indicative of dehydration?

• A. Low sodium levels.
• B. Elevated creatinine levels.
• C. Low potassium levels.
• D. High blood glucose levels.

Correct answer: B

Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.

3. The nurse is caring for a newly admitted patient who will receive digoxin to treat a cardiac dysrhythmia. The patient takes hydrochlorothiazide (HydroDIURIL) and reports regular use of over-the-counter laxatives. Before administering the first dose of digoxin, the nurse will review the patient’s electrolytes with careful attention to the levels of which electrolytes?

• A. Calcium and magnesium
• B. Sodium and calcium
• C. Potassium and chloride
• D. Potassium and magnesium

Correct answer: D

Rationale: Before administering digoxin, the nurse must review the patient's electrolyte levels, focusing on potassium and magnesium. Hypomagnesemia, similar to hypokalemia, can enhance the action of digitalis and lead to digitalis toxicity. Laxatives and diuretics, like hydrochlorothiazide, can deplete both potassium and magnesium. Therefore, monitoring these electrolytes is crucial to prevent potential adverse effects associated with digoxin therapy. Choice A (Calcium and magnesium) is incorrect because calcium levels are not specifically mentioned as crucial for digoxin therapy. Choice B (Sodium and calcium) is incorrect as sodium is not typically monitored in relation to digoxin therapy. Choice C (Potassium and chloride) is incorrect because although potassium is vital, chloride is not typically associated with digoxin therapy.

4. A client with chronic renal failure is receiving epoetin alfa (Epogen) to treat anemia. The nurse should assess the client for which of the following side effects?

• A. Hypertension.
• B. Hypotension.
• C. Infection.
• D. Edema.

Correct answer: A

Rationale: The correct answer is A: Hypertension. Epoetin alfa (Epogen) is a medication used to treat anemia in clients with chronic renal failure. One common side effect of this medication is hypertension. Epoetin alfa stimulates red blood cell production, which can lead to an increase in blood pressure. Therefore, the nurse should closely monitor the client for signs and symptoms of hypertension while on this medication. Choices B, C, and D are incorrect. Hypotension is not typically associated with epoetin alfa administration. Infection is not a direct side effect of epoetin alfa. Edema is also not a common side effect of this medication.

5. Which of the following is a primary intervention for a patient with sepsis?

• A. Administering antibiotics
• B. Administering IV fluids
• C. Administering antipyretics
• D. Monitoring blood cultures

Correct answer: D

Rationale: Monitoring blood cultures is a primary intervention for a patient with sepsis because it helps identify the causative organism, which is crucial in guiding appropriate antibiotic therapy. Administering antibiotics (Choice A) is important in treating sepsis but is considered a secondary intervention. Administering IV fluids (Choice B) is also crucial for sepsis management to restore perfusion and hemodynamic stability. Administering antipyretics (Choice C) may help reduce fever, but it is not a primary intervention for managing sepsis.

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