Test Mnemonic
P5PCSF
CPT Codes
Aliases
- Pyridox(am)ine phosphate oxidase deficiency
Performing Laboratory
Medical Neurogenetics
Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 1 mL | Cerebrospinal fluid (CSF) | Clean container | | Frozen | |
Alternate Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 3.5 mL | Cerebrospinal fluid (CSF) | Other | | 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 tubes 1,2,and 5;1.0 mL in tubes 3 and 4). Place specimens on ice after collection. If specimen is blood contaminated, the tubes should be centrifuged immediately (prior to freezing) and the clear CSF transferred to new similarly labeled tubes then frozen ASAP at -80 C. Call Client Services at 216-444-5755 or 800-628-6816 to obtain sample collection vials. |
Minimum Specimen Requirements
| Volume |
Type |
Container |
Collect Temperature |
Transport Temperature |
Special Instructions |
| 0.5 mL | | | | | |
Stability
| Environmental Condition |
Description |
| Ambient | Unacceptable |
| Refrigerated | Unacceptable |
| Frozen | Indefinitely |
Days Performed
Varies
Turnaround Time
15 - 17 days
Methodology
| Name |
Description |
| High Performance Liquid Chromatography with Fluorescence Detection (HPLC-FL) | |
Reference Range
| Pyridoxal 5 phosphate, CSF |
| Sex |
Age From |
Age To |
Type |
Range |
Range Unit |
| | Months | 3 Months | Normal | 30-80 | nmol/L |
| 3 Months | 12 Months | Normal | 23-64 | nmol/L |
| 1 Years | 4 Years | Normal | 18-50 | nmol/L |
| 5 Years | 99 Years | Normal | 10-37 | nmol/L |
Special Info
If the CSF is blood contaminated, the specimen should be immediately centrifuged (prior to freezing) and the clear CSF transferred to a new tube and frozen.
