R83: Abnormal findings in cerebrospinal fluid
R83.2: Abnormal findings in cerebrospinal fluid : abnormal level of other drugs, medicaments and biological substances
There are cavities with cerebrospinal fluid in the brain, around the brain and around the spinal cord. Among other things, the cerebrospinal fluid cushions the brain and spinal cord during knocks and also nourishes the brain cells. The cerebrospinal fluid is usually taken from the lower back for examination. The cerebrospinal fluid normally only contains a certain amount of different substances. These substances include certain cells and certain proteins, for example. Sometimes you can also detect substances in the cerebrospinal fluid that are not normally found there.
Drugs or medication may be detected in your cerebrospinal fluid, for example. Other substances may also be detected. These substances are not normally found in the body and can cause problems. These substances are substances from the environment, for example. These substances can be poisonous.
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