Nursing Elites

1. In addition to matching ABO antigens, a blood transfusion must also be matched for:

• A. HLA type
• B. Rh antigen
• C. Immunoglobulins
• D. Platelet compatibility

Correct answer: B

Rationale: The correct answer is B: Rh antigen. In addition to ABO antigens, Rh antigen must also be matched for a blood transfusion. Rh antigen compatibility is crucial to prevent adverse reactions. Choice A, HLA type, is not directly related to blood transfusions but plays a role in organ transplantation. Choice C, Immunoglobulins, are not typically matched for blood transfusions. Choice D, Platelet compatibility, while important in specific cases, is not a standard requirement for all blood transfusions.

2. A patient is prescribed finasteride (Proscar) for benign prostatic hyperplasia (BPH). What outcome should the nurse expect to observe?

• A. Decreased urinary frequency and urgency
• B. Increased prostate size
• C. Increased blood pressure
• D. Increased risk of kidney stones

Correct answer: A

Rationale: The correct answer is A: Decreased urinary frequency and urgency. Finasteride is expected to decrease urinary frequency and urgency in patients with BPH by reducing prostate size. It works by inhibiting the enzyme that converts testosterone to dihydrotestosterone, which helps shrink the prostate gland. Choices B, C, and D are incorrect. Finasteride does not increase prostate size, blood pressure, or the risk of kidney stones.

3. A patient is being treated for active tuberculosis with ethambutol (Myambutol). The patient states to the nurse that he cannot identify the red and green on the traffic lights when he is driving. Based on this finding, what medical intervention is most appropriate?

• A. Assess for photosensitivity.
• B. Discontinue ethambutol (Myambutol).
• C. Decrease the ethambutol (Myambutol) dose.
• D. Administer vitamin B.

Correct answer: A

Rationale: The correct answer is to assess for photosensitivity. Ethambutol can cause optic neuritis, leading to visual disturbances, including difficulty differentiating red and green colors. This is a sign of optic nerve damage and requires immediate evaluation. Discontinuing ethambutol may be necessary if optic neuritis is confirmed, but this decision should be made by a healthcare provider. Decreasing the dose of ethambutol may not address the visual changes. Administering vitamin B does not directly address the side effect caused by ethambutol.

4. What lab results would be noted in a client with leukocytosis?

• A. Increased white blood cell count
• B. Increased platelet count
• C. Decreased white blood cell count
• D. Decreased platelet count

Correct answer: A

Rationale: Leukocytosis is a condition characterized by an elevated white blood cell count, typically in response to infection or inflammation. Therefore, the correct answer is an increased white blood cell count (Choice A). Increased platelet count (Choice B) is not a typical finding in leukocytosis. Choices C and D, decreased white blood cell count and decreased platelet count respectively, are opposite to what would be expected in leukocytosis and are therefore incorrect.

5. A client asks a nurse about the cause of Parkinson's disease. How should the nurse respond?

• A. Parkinson's disease is caused by a lack of dopamine in the brain, which affects movement.
• B. Parkinson's disease is caused by an excess of acetylcholine in the brain, leading to tremors and rigidity.
• C. Parkinson's disease is caused by an autoimmune response that attacks the nervous system.
• D. Parkinson's disease is caused by a bacterial infection that needs to be treated with antibiotics.

Correct answer: A

Rationale: The correct answer is A. Parkinson's disease is caused by a deficiency of dopamine in the brain, which results in the characteristic motor symptoms such as tremors, rigidity, and bradykinesia. Choice B is incorrect because Parkinson's disease is not caused by an excess of acetylcholine. Choice C is incorrect because Parkinson's disease is not an autoimmune disorder. Choice D is incorrect because Parkinson's disease is not caused by a bacterial infection and cannot be treated with antibiotics.

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