Nursing Elites

1. A nurse is teaching a nursing student how to measure a carotid pulse. The nurse should tell the student to measure the pulse on only one side of the client’s neck primarily because:

• A. It is unnecessary to use both hands
• B. Feeling dual pulsations may lead to an incorrect measurement
• C. Palpating both carotid pulses simultaneously could occlude the trachea
• D. Palpating both carotid pulses simultaneously could cause the heart rate and blood pressure to drop

Correct answer: D

Rationale: The correct answer is D. Applying pressure to both carotid arteries at the same time is contraindicated. Excess pressure to the baroreceptors in the carotid vessels could cause the heart rate and blood pressure to reflexively drop. Palpating both carotid pulses simultaneously could also interfere with the flow of blood to the brain, possibly causing dizziness and syncope. Choices A, B, and C are incorrect. It is necessary to use both hands to measure the carotid pulse accurately. Feeling dual pulsations does not lead to an incorrect measurement, and palpating both carotid pulses simultaneously does not occlude the trachea.

2. 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.

3. 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.

4. What is the priority assessment for a patient receiving intravenous morphine?

• A. Assessing the patient's blood pressure.
• B. Monitoring the patient's respiratory rate.
• C. Checking the patient's pain level.
• D. Monitoring the patient's oxygen saturation.

Correct answer: B

Rationale: The correct answer is monitoring the patient's respiratory rate. When a patient receives intravenous morphine, the priority assessment is to monitor the respiratory rate due to the risk of respiratory depression associated with morphine. This assessment helps in detecting and managing any potential respiratory complications promptly. Assessing blood pressure, checking pain level, and monitoring oxygen saturation are important aspects of patient care but are not the priority when considering the specific risk of respiratory depression with intravenous morphine.

5. 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.

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