To determine the causative agent of a central nervous system (CNS) infection, a sample is taken from the
A) cerebrospinal fluid.
B) arterial blood.
C) venous blood.
D) urine.
E) ventricles.

Question

Quizplus · Accepted Answer

To determine the causative agent of a central nervous system (CNS) infection, the best sample to take is cerebrospinal fluid (CSF). This is because the CSF circulates within the CNS, and any infection or inflammation within the CNS will be reflected in the CSF. Arterial and venous blood may not necessarily reflect what is happening in the CNS, while urine and ventricular samples are not typically used for diagnosing CNS infections.

To Determine the Causative Agent of a Central Nervous System