A nurse is caring for a client who has a suspected brain tumor. Which of the following diagnostic tests should the nurse understand is most frequently used to diagnose brain tumors?
Blood test for tumor markers
Computerized tomography (CT) scan
Phalen’s test
Burr holes
The Correct Answer is B
Choice A reason: Blood tests for tumor markers are not primary for brain tumors, as few reliable markers exist. Imaging like CT is standard, making this incorrect for frequent diagnosis.
Choice B reason: A CT scan is the most frequently used test to diagnose brain tumors, providing detailed brain imaging to detect masses. This is standard practice, making it the correct choice.
Choice C reason: Phalen’s test diagnoses carpal tunnel syndrome, not brain tumors. It’s unrelated to neurological imaging, making this incorrect for diagnosing suspected brain tumors.
Choice D reason: Burr holes are a surgical intervention, not a diagnostic test. CT scans are non-invasive and primary for tumor detection, making this incorrect for diagnosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: St. John’s Wort with sertraline increases serotonin levels, risking serotonin syndrome. Symptoms like diaphoresis, tachycardia, and tremors are classic signs, requiring urgent monitoring, making this the correct observation for the client.
Choice B reason: Fever, dystonia, and muscle rigidity suggest neuroleptic malignant syndrome, linked to antipsychotics, not sertraline or St. John’s Wort. This is unrelated to the drug interaction, making it incorrect.
Choice C reason: Worsening depression or suicidal ideation may occur with antidepressants, but St. John’s Wort more likely causes serotonin syndrome. These symptoms are less immediate, making this incorrect for the primary concern.
Choice D reason: Spasms and bizarre movements suggest tardive dyskinesia, associated with antipsychotics, not sertraline or St. John’s Wort. Serotonin syndrome is the primary risk, making this incorrect.
Correct Answer is A
Explanation
Choice A reason: Holding the wrist at 90-degree flexion (Phalen’s test) reproduces numbness or pain in carpal tunnel syndrome by compressing the median nerve. This confirms the diagnosis, making it the correct test.
Choice B reason: Extending the arm upward does not stress the median nerve, so it won’t elicit carpal tunnel symptoms. This is unrelated to diagnostic testing, making it incorrect.
Choice C reason: Flexing the arm at the elbow does not target the wrist’s median nerve. Carpal tunnel involves wrist compression, so this test is irrelevant, making it incorrect.
Choice D reason: Holding the arm straight does not provoke carpal tunnel symptoms. Phalen’s test specifically compresses the nerve, making this incorrect for diagnosing the client’s condition.
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