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Specimen Collection Manual and Test Catalog

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ADMARK(R)PHOSPHO-TAU/TOTAL-TAU/A BETA42,INTERP,CSF

Geisinger Epic Procedure Code:  LAB2849    Geisinger Epic ID:  35848

SPECIMEN COLLECTION
Specimen type: 

Cerebrospinal fluid (CSF)


Preferred collection container: 
Specimen required: 

2 mL (minimum 0.5 mL) CSF


Special notes: 

Polypropylene transfer tube only. Glass and polystyrene transfer tubes are not acceptable.



SPECIMEN PROCESSING
Processing instructions: 

Polypropylene transfer tube only. Glass and polystyrene transfer tubes are not acceptable.


Transport temperature: 

Refrigerated.


Specimen stability: 

Room temperature: 3 days. Refrigerated: 21 days. Frozen: 4 months.


Rejection criteria: 

Room temperature specimen. Stability limits exceeded.



TEST DETAILS
Reference interval: 

Accompanies report.


CPT code(s):  84393, 82234, 84394
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Enzyme-Linked Immunosorbent Assay (ELISA)
Synonyms: 

ADMARK(R) CSF analysis, Quest test code 92433, ADMCSF


Clinical significance: 

Correlates levels of Phosphorylated-Tau protein, Total-Tau protein, and AB42 peptide in CSF.


Review Date:  12/03/2024

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