Which diagnostic test is considered the definitive test for meningitis?
Blood culture
Lumbar puncture
MRI
CT scan
The Correct Answer is B
A. Blood cultures can identify causative organisms but are not definitive for meningitis.
B. Lumbar puncture is the definitive test for meningitis, as it allows for analysis of cerebrospinal fluid to confirm the diagnosis and identify the causative organism.
C. MRI can provide imaging of the brain but cannot definitively diagnose meningitis.
D. CT scan is useful for imaging but does not provide a definitive diagnosis of meningitis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Dilute urine is a primary symptom of DI but not a neurologic effect.
B. Hypotension is a cardiovascular effect of DI due to excessive fluid loss.
C. Ataxia, or lack of muscle coordination, can occur due to severe dehydration and electrolyte imbalances affecting the nervous system in DI.
D. Poor skin turgor indicates dehydration but is not a neurologic effect.
Correct Answer is C
Explanation
A. Weight loss is not a typical manifestation; weight gain due to fluid retention is more likely in SIADH.
B. Hypernatremia is not seen in SIADH; hyponatremia is more common.
C. Oliguria, or decreased urine output, is a characteristic manifestation of SIADH due to excessive antidiuretic hormone.
D. Increased thirst is not a primary symptom of SIADH; fluid retention and dilutional hyponatremia are more significant concerns.
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