ABSTRACT
The diagnostic tests used most often to evaluate patients who have disease of the central nervous system include cerebrospinal fluid (CSF) analysis, electroencephalography (EEG), electromyography (EMG), evoked potentials, computed tomography (CT), and magnetic resonance imaging (MRI). These tests should be used to supplement or to extend the clinical examination. Remember that diagnostic tests have technical limitations and the quality of the results depends on the examiner or laboratory performing the test. The results should always be interpreted in the context of the patient’s clinical presentation.
