According to Dr. Longo:
The prolactin is increased to 18.3 (normal for a child his age is up to 10.1): this is likely to reflect partial deficiency of dopamine, likely secondary to his primary problem. I would proceed with the spinal tap to measure neurotransmitter metabolites. If low, they can guide therapy to improve Bertrand's symptoms.
Lysosomal enzymes were sent to Baylor Houston (not to Dallas where Dr. Schiffman is). They will take another two weeks. If they are normal, we might consider a skin biopsy: some enzymes are not expressed in blood cells and require skin fibroblast.
[...] Your child will need sedation for the tap. Would do it when we do the skin biopsy and I would wait first on the results of the pending tests. Would plan to do it first week of April.