What method is used to determine the presence of glucose in nasal drainage?

The method used to determine the presence of glucose in nasal drainage is glucose testing. This is particularly relevant in clinical scenarios where conditions like cerebrospinal fluid leaks are suspected. Glucose is a vital energy source for the body's cells, and its presence in nasal drainage could indicate that there is a connection to the central nervous system, especially in cases of trauma.

Glucose testing specifically measures the concentration of glucose in the sample, providing critical information that can guide further diagnosis and management. In addition, elevated glucose levels in nasal drainage can suggest conditions such as a potential cerebrospinal fluid leak, which is a medical emergency.

Other testing methods, while useful in different contexts, do not serve this specific purpose. For instance, protein testing is generally used to detect inflammation or infection but does not specifically measure glucose levels. Culture testing is employed to identify organisms in infections but is not applicable to the analysis of glucose. Blood testing measures glucose levels in the bloodstream and does not provide information directly related to nasal drainage.