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CSF cell count

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CSF cell count
CSF cell count


CSF cell count

Definition:

A CSF cell count is a test to measure the number of red and white blood cells that are in cerebrospinal fluid (CSF). CSF is a clear fluid that circulates in the space surrounding the spinal cord and brain.

How the test is performed:

Text Continues Below



The CSF is usually obtained through a lumbar puncture (spinal tap). The cerebrospinal fluid is analyzed in the lab.

How to prepare for the test:

Drink plenty of water prior to the test.

Infants and children:

The preparation you can provide for this or any test or procedure depends on your child's age, previous experience, and level of trust. For specific information regarding how you can prepare your child, see the following:

How the test will feel:

Patients will be asked to either sit up or lie down on their sides with the back parallel to the bed and the chin tucked under and the legs curled in the fetal position. The healthcare provider will use the bony protrusions of the hip to determine the most appropriate location to remove fluid. This is usually at what is known as the L3-L4 vertebral level.

Subsequently iodine will be used to clean off the area and a sterile sheet will be draped over the surrounding area. In infants and small children, EMLA cream, a local anesthetic cream will be used to numb the skin and will be applied about 1 hour prior to the procedure. In adults, lidocaine will be injected under the skin initially, and then deeper such that tissue beneath the skin will also be numbed.

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