Test ID: FNTSM
Neurotransmitter Profile 3
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.
5-Methyltetrahydrofolate
Age 5MTHF
(years) (nmol/L)
0-0.2 40-240
0.2-0.5 40-240
0.5-2.0 40-187
2.0-5.0 40-150
5.0-10 40-128
10-15 40-120
Adults 40-120
Neurotransmitter Metabolites/Amines
Age 5HIAA HVA 3-O-MD
(years) (nmol/L) (nmol/L) (nmol/L)
0-0.2 208-1159 337-1299 <300
0.2-0.5 179-711 450-1132 <300
0.5-2.0 129-520 294-1115 <300
2.0-5.0 74-345 233-928 <150
5.0-10 66-338 218-852 <100
10-15 67-189 167-563 <100
Adults 67-140 145-324 <100
Tetrahydrobiopterin/Neopterin Profile
Age BH4 Neop
(years) (nmol/L) (nmol/L)
0-0.2 40-105 7-65
0.2-0.5 23-98 7-65
0.5-2.0 18-58 7-65
2.0-5.0 18-50 7-65
5.0-10 9-40 7-40
10-15 9-32 8-33
Adults 10-30 8-28
Note: If test results are inconsistent with the clinical
presentation, please call our laboratory to discuss the case
and/or submit a second sample for confirmatory testing.
DISCLAIMER required by the FDA for high complexity clinical
laboratories: HPLC testing was developed and its performance
characteristics determined by Medical Neurogenetics. These
HPLC tests have not been cleared or approved by the U.S. FDA.
Test Performed By: Medical Neurogenetics Lab
5424 Glenridge Drive NE
Atlanta, GA 30342


