A nurse admitting a patient with possible Creutzfeldt-Jakob disease (CJD) knows that which of the following diagnostic tests is used to identify this disease?
A) Lumbar puncture
B) Arterial blood gas analysis
C) CT scan
D) Cerebral angiography
Ans: D
Feedback: Recent detection of a polyclonal antibody (protein 14-3-3) in cerebrospinal fluid (CSF) has enabled the diagnosis of CJD. Arterial blood gases are not necessary until the later stages of CJD and are not utilized diagnostically. A CT scan is used to rule out disorders that may mimic the symptoms of CJD. Cerebral angiography is not diagnostic of CJD.
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