Test directory: Lumipulse pTau-217/Beta Amyloid 42

Ordering Code 8500
Test Name Lumipulse pTau-217/Beta Amyloid 42
Alias Lumipulse pTau-217/Beta Amyloid 42 Ratio, Plasma
217/42
ptau217/42 ratio
ptau217/Abeta42 ratio
Lumipulse
Preferred Specimen Plasma
Preferred Container EDTA, K2 (Lavender)
Optimum Volume 1 mL
Handling Instructions Draw full lavender-top (EDTA) tube of blood. Immediately separate plasma from blood via centrifugation within two hours after blood collection. Transfer plasma to polypropylene transport tube, seal and freeze.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: 3 Hours
Refrigerated: 1 Day
Frozen: 1 Month
Rejection Criteria Hemolyzed, Lipemic, Heat-treated specimen, Gross bacterial contamination
Avail. Stat NO
Analytic Time 7 Days
Methodology Fujirebio Lumipulse chemiluminescent enzyme immunoassay (CLEIA)
Reference Lab  Monogram Biosciences, Inc

Reference range(s)

The reference ranges listed below are valid on this date of November 22, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
pTau-217 ALL See report.
Beta-amyloid 42 ALL See report.
pTau-217/AB42 Ratio ALL See report.
Interpretation ALL See report.