Test Code FNTSM Neurotransmitter Profile 3
Specimen Required
Medical Neurogenetics collection kit (MCL Supply T657) required.
Each collection kit contains 5 microcentrifuge tubes.
COLLECTION PROTOCOL:
1) CSF should be collected from the first drop into the tubes in the numbered order. Fill each tube to the marked line with the required volumes.
Tube 1: 0.5 mL
Tube 2: 1.0 mL
Tube 3: 1.0 mL (contains antioxidants necessary to protect the same integrity)
Tube 4: 1.0 mL
Tube 5: 1.0 mL
-If samples not blood contaminated, the tubes should be placed on dry ice at bedside.
-If samples are blood contaminated, the tubes should immediately be centrifuged (prior to freezing) and the clear CSF transferred to new similarly labeled tubes, then frozen.
-Store samples at -80 until they can be shipped.
2) Complete Medical Neurogenetics, LLC request form, marking the following three tests: Neurotransmitter Metabolites, Tetrahydrobiopterin and 5-Methyltetrahydrofolate. Also include sample date and date of birth.
3) Label tubes with patient name and ID number, leaving the tube number viewable.
4) Place samples inside the specimen transport bag and the Medical Neurogenetics, LLC request form inside the pouch of the transport bag.
5) Ship samples frozen on dry ice.
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
CSF | Frozen | CSF KIT |
Reject Due To
Specimens other than | CSF in special collection kit (MCL supply T657) |
Anticoagulants other than | NA |
Hemolysis | NA |
Lipemia | NA |
Icteric | NA |
Day(s) Performed
Monday through Friday
Report Available
14 to 18 daysReporting Name
Neurotransmitter Profile 3Reference Values
5-Methyltetrahydrofolate
Age (years) |
5MTHF (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 |
10-15 |
40-128 |
Adults |
40-120 |
Neurotransmitter Metabolites/Amines
Age (years) |
5HIAA (nmol/L) |
HVA (nmol/L) |
3-O-MD (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 |
Neurotransmitter Metabolites/Amines
Age (years) |
5HIAA (nmol/L) |
HVA (nmol/L) |
3-O-MD (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 (years) |
BH4 (nmol/L) |
Neop (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.
Method Name
High Performance Liquid Chromatography-Electrochemistry & Fluorescences
Performing Laboratory
Medical Neurogenetics, LLCCPT Code Information
82542 - 5-Methyltetrahydrofolate
82542 - Tetrahydrobiopterin/Neopterin
82542, 83497, 83150 - Neurotransmitter Metabolites/Amines
Profile Information
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
F5MET | 5-Methyltetrahydrofolate | Yes, (order F5M) | Yes |
FNTM | Neurotransmitter Metabolites/Amines | Yes, (order FNEU) | Yes |
FFTHB | Tetrahydrobiopterin/Neopterin | Yes, (order FFTEN) | Yes |