Test ID: FMNM
Monoamine Neurotransmitter Metabolites/Amines
Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
CSF Metabolite Age related reference ranges (values
expressed in nmol/L)
5-Hydroxyindoleacetic acid (5HIAA)
Newborn 0-73 days 208-1159
Infant 73 days-6 months 179-711
Toddler 6 months-2 years 129-520
Child 2-5 years 74-345
Older Child 5-10 years 66-338
Adolescent 10-15 years 67-189
Adult > 15 years 67-140
Homovanillic acid (HVA)
Newborn 0-73 days 337-1299
Infant 73 days-6 months 450-1132
Toddler 6 months-2 years 294-1115
Child 2-5 years 233-918
Older Child 5-10 years 218-852
Adolescent 10-15 years 167-852
Adult > 15 years 145-852
3-O-methyldopa (3-OMD)
Newborn 0-73 days 0-300
Infant 73 days-6 months 0-300
Toddler 6 months-2 years 0-300
Child 2-5 years 0-150
Older Child 5-10 years 0-100
Adolescent 10-15 years 0-100
Adult > 15 years 0-100
Test Performed By: Baylor Institute of Metabolic Disease
Baylor Research Institute
3812 Elm Street
Dallas, TX 75226


