Sign in →

Test Code ZG357 Phosphorylated tau181 (p-tau181) (Quest)

Important Note

These are collection and handling instructions for approved testing at Quest Diagnostics.

Additional Codes

Quest:13690

Methodology

Electrochemiluminescence (ECLIA)

Performing Laboratory

Quest Diagnostics

Specimen Requirements

Phlebotomist:

Container/Tube: Lavender-top or Pink-top (EDTA) tube

Specimen Volume: 1.0 mL of EDTA plasma

Spin and pour off, keep at room temp.

 

Processing:

Place specimen in the Room Temperature send out rack. Call Quest for pick-up.

Specimen Transport Temperature

Room Temperature

Specimen Stability Information

Temperature Time
Refrigerated 22 days
Frozen 22 days
Ambient 14 days

 

Day(s) Test Set Up

Set up Mon-Sat; Report available 3-5 days.

 

Test Classification and CPT Coding

TBD

Reference Values

<55 years: <0.86 pg/mL

>55 years: <1.07 pg/mL