Neurotransmitters (CSF amine / monamine metabolites, 5-Methyltetrahydrofolate (5-MTHF), Pterins and PLP / Homovanillic Acid / 5-HIAA / CSF Pterins / Tetrahydrobiopterin / Dihydrobiopterin / Neopterin – Total / HVA:5HIAA Ratio)

Sample type	CSF
Container	Tubes made up by dispatch lab staff	Click image to enlarge ×
Sample volume	2ml total
Turnaround time	4-8 wks
Hospital	Institute of Neurology, London
Telephone number	0044 845 1555 000 Ext 723844
Laboratory	Immunology
Special precautions / Clinical Comment	MUST be prearranged with Dispatch. Collect CSF in tubes provided by Dispatch. Samples need to be snap frozen at bedside on dry ice provided. MUST take CSF in PROPER sequence. MUST be taken before any other test request.
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