Negative ( <=0.722 pg/mL)
A negative test result is consistent with a negative amyloid
PET scan result. These patients should be investigated for
causes of cognitive decline other than amyloid pathology.
Positive ( >0.722 pg/mL)
A positive result may not be consistent with a positive
amyloid PET scan result. Patients with an initial positive
result should be further investigated to determine whether
amyloid pathology can be a cause of cognitive impairment.
Test performed by Roche Diagnostics Electrochemiluminescence
Immunoassay (ECLIA)