👉 The Glasgow Fluid is a diagnostic tool used in neurology to assess the integrity of the blood-brain barrier (BBB), a crucial protective membrane that separates the brain's extracellular fluid from circulating blood. It involves injecting a small amount of a fluorescent dye into the bloodstream and then monitoring its passage through the BBB using MRI scans. If the dye successfully crosses the BBB, it will appear as a bright signal on the MRI images, indicating a compromised barrier. Conversely, if the dye remains in the bloodstream without crossing, it suggests intact BBB function. This test is valuable for diagnosing conditions like multiple sclerosis, brain tumors, and infections where BBB disruption is common.
