![]() Although a sample of CSF may be more difficult to obtain than, for example, urine or blood, the results may reveal more directly the cause of brain-related symptoms.įor example, infections and inflammation in the meninges (called meningitis) or the brain (called encephalitis) can disrupt the blood-brain barrier and allow white and red blood cells and increased amounts of protein into the CSF. Because CSF surrounds the brain and spinal cord, testing a sample of CSF can be very valuable in diagnosing a variety of diseases affecting the central nervous system (CNS). Any condition that disrupts this protective barrier may result in a change in the normal level or type of constituents of CSF. The barrier helps keep large molecules, toxins, and most blood cells away from the brain. This rate of production means that all of the CSF is replaced every few hours.Ī protective blood-brain barrier separates the brain from circulating blood and regulates the distribution of substances between the blood and the CSF. CSF is continually produced, circulated, and then absorbed into the blood system. CSF flows around the brain and spinal cord, surrounding and protecting them. We are not a laboratory and are unable to comment on an individual's health and treatment.Ĭerebrospinal fluid (CSF) is a clear watery liquid filtrate that is formed by the choroid plexus, a special tissue that has many blood vessels and lines the small spaces or chambers (ventricles) in the brain. Lab Tests Online-UK is an educational website designed to provide patients and carers with information on laboratory tests used in medical care. If you are concerned about your test results, you will need to arrange an appointment with your doctor so that all relevant information including age, ethnicity, health history, signs and symptoms, laboratory and other procedures (radiology, endoscopy, etc.), can be considered. If the doctor wants to see you about the result(s), you will be offered an appointment. Your GP practice will be able to provide specific details. If you are registered to use the online services of your local practice, you may be able to access your results online. The X-ray & scan results may take longer. Some specialist test results may take longer, if samples have to be sent to a reference (specialist) laboratory. On average it takes 7 working days for the blood test results to come back from the hospital, depending on the exact tests requested. Urine Protein and Urine Protein to Creatinine Ratio.Urine Albumin to Creatinine Ratio or ACR. ![]() ![]() Unvalidated or misleading laboratory tests.Heparin-induced Thrombocytopenia Antibody.Genetic Tests for Targeted Cancer Therapy.First Trimester (Combined) Screen for Down’s Syndrome and other fetal anomalies.Factor V Leiden Mutation and PT 20210 Mutation. ![]()
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