What does ELISA test for in cerebrospinal fluid (CSF)?

The ELISA (Enzyme-Linked Immunosorbent Assay) test is specifically designed to detect the presence of antigens and antibodies in various biological samples, including cerebrospinal fluid (CSF). In the context of CSF, the test is particularly useful for diagnosing infections, autoimmune diseases, and various neurological conditions by determining whether specific pathogens or the immune response to these pathogens is present.

When applied to CSF, ELISA can measure levels of antibodies that the immune system produces in response to infections or other abnormalities, as well as the presence of antigens from pathogens like viruses or bacteria. This capability makes ELISA a valuable tool in clinical settings for evaluating the health status of the nervous system and identifying underlying issues.

The other options focus on components that ELISA is not designed to measure in CSF. While the presence of DNA and RNA might be relevant in other contexts, that's not the primary goal of an ELISA. Similarly, glycoproteins and lipids, along with proteins and fats, are not the specific focus of an ELISA test in this scenario. The distinguishing feature of ELISA is its ability to target and quantify the interactions between antigens and antibodies, making it the correct choice for this question about cerebro