ADmark Phospho-Tau CSF
Test Mnemonic
PHOTAU
CPT Codes
- 83520 - QTY (3)
Aliases
- ADmark Phospho-Tau/Total-Tau/Ab42
- ADmark Phospho-Tau/Total-Tau/A Beta42,Analysis and Interp
Includes
- Phosphorylated-Tau protein
- Total-Tau protein
- AB42 peptide
Performing Laboratory
Athena Diagnostics
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 mL | Cerebrospinal fluid (CSF) | Polypropylene | Frozen | CSF MUST be submitted in polypropylene tube. Tubes other than polypropylene are not acceptable. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 3 days |
| Refrigerated | 21 days |
| Frozen | 4 months |
Days Performed
Varies
Turnaround Time
8 - 15 days
Methodology
| Name | Description |
|---|---|
| Enzyme-Linked Immunosorbent Assay (ELISA) |
Reference Range
| ADmark Phos Tau CSF | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| See Report |
Special Info
Rejection criteria: CSF samples that arrive in non-polypropylene tubes; CSF specimens with cell count > 500 erythrocytes/mm3.
Clinical Info
Correlates levels of Phosphorylated-Tau protein, Total-Tau protein and AB42 peptide in CSF