Your doctor may also suggest MRI or CT scan to check for any swelling.
Talk to your doctor if you are taking any blood-thinning medications or if you are allergic to any medications.
5 What to Expect
Here’s what you can expect before, during, and after your lumbar puncture (spinal tap).
Your doctor will ask you to change into a hospital gown and the procedure is done in a hospital. He will ask you to lie on your side with your knees drawn up to your chest so it will make it easier for your doctor to insert the needle. Your back will be washed and covered with a sterile sheet.
During the procedure, you will be injected with anesthesia to numb the puncture site at your lower back. A thin, hollow needle is inserted between the two lower vertebrae (lumbar region), through the spinal membrane (dura) and into the spinal canal.
You may feel pressure in your back during this part of the procedure. You will be asked to change position once the needle is in place. The pressure will be measured again the needle is removed while the puncture site will be bandaged.
Your doctor will advise you to rest and do not participate in strenuous activities after the procedure; your doctor may tell you when the right time to go back to your job is. To help reduce pain and headache, your doctor will prescribe a nonprescription pain-relieving medication that contains acetaminophen.
6 Procedure Results
Understanding the results of your lumbar puncture (spinal tap) will be made possible by your doctor.
The samples of your spinal fluid will be sent to the laboratory to check it for:
General appearance because if it is cloudy yellow or pink in color means infection.
Total protein and the presence of certain proteins greater than 45 milligrams means there is an infection or inflammatory condition.
White blood cells to check if it increased because it means infection.
Sugar or glucose because low glucose level may indicate infection or other condition.
Microorganisms to check if there is the presence of viruses, fungi, bacteria, or pother microorganisms.
Cancer cells such as a tumor or immature blood cells.
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