Creatine is a naturally-occurring amino acid (protein building block) that's found in meat and fish, and also made by the human body in the liver, kidneys, and pancreas.It is converted into creatine phosphate or phosphocreatine and stored in the muscles, where it is used for energy.reatine is a naturally-occurring amino acid (protein building block) that's found in meat and fish, and also made by the human body in the liver, kidneys, and pancreas.
Lumbar punctures usually take place in a doctorâs office â most often a neurologist â that has been equipped to do this procedure. Who will be in the room with my child during the procedure? Your child will be with her doctor or nurse practitioner performing the lumbar puncture, and a nurse or clinical assistant who will help.
1 A syringe is attached to the spinal needle to draw out the fluid. The fluid can also be allowed to drip into a collection tube.  A lumbar tap (also called lumbar puncture) is performed in the lower back of a patient. The area is shaved and sterilized, and a spinal needle is inserted.