Neopterin, CSF
Test Mnemonic
NEOCSF
CPT Codes
- 82542 - QTY (1)
Performing Laboratory
Medical Neurogenetics
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 4.5 mL | Cerebrospinal fluid (CSF) | Set of 5 MNG Collection Tubes | Place specimen on ice after draw. | Frozen | CSF should be collected from the first drop into the containers in the order indicated. Fill each tube to the marked line (0.5 mL in tube 1; 1.0 mL in tubes 2, 3, 4, and 5). Place specimens on ice after collection. Call Client Services at 216-444-5755 or 800-628-6816 to obtain appropriate specimen collection containers. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | Place specimen on ice after draw. | Frozen | This specimen is to be used if Neopterin is the only CSF Medical Neurogenetics test ordered. The minimum specimen is 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Frozen | Indefinitely |
| Ambient | Unacceptable |
| Refrigerated | Unacceptable |
Days Performed
Tue - Fri
Turnaround Time
15 - 17 days
Methodology
| Name | Description |
|---|---|
| HPLC with Fluorescent and Electrochemical Detection |
Reference Range
| Neopterin, CSF | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Years | 5 Years | Normal | 7 - 65 | nmol/L | 5 Years | 10 Years | Normal | 7 - 40 | nmol/L | 10 Years | 15 Years | Normal | 8 - 33 | nmol/L | 16 Years | 99 Years | Normal | 8 - 28 | nmol/L |
Special Info
Place specimen on ice after draw. CSF should be collected from the first drop into the containers in the order indicated. Fill each tube to the marked line (0.5 mL in tube 1; 1.0 mL in tubes 2, 3, 4, and 5). Place specimens on ice after collection. Call Client Services at 444-5755 to obtain appropriate specimen collection containers.