Beta-Amyloid 42/40 Ratio, Plasma
Also known as ABeta 42, ABeta 40, AB40, AB42, Alzheimer's Disease (AD), AB42/40, AD, ABeta 42/40
What it measures
- Abeta 42LOINC 33200-7
- Abeta 40LOINC 70073-2
- Abeta 42/40 Ratio
Specimen
- Specimen
- 1.2 mL plasma collected in K2 EDTA tube
- Minimum volume
- 0.6 mL
- Container
- Transport tube
- Temperature
- Frozen
Collect blood into a K2 EDTA Plasma tube and mix by inversion 10 times. Centrifuge to separate plasma from cells within 1 hour of collection. Carefully transfer plasma into a polypropylene tube or one of the issued polypropylene pour-off/transfer tubes. Do not transfer to conical tube. If unable to centrifuge within 1 hour of collection, store tube on ice. Store frozen. Note: the lab does not perform this test for individuals under the age of 18. Pre-test and post-test counseling is strongly recommended.
Turnaround
Set up: Sun
Billing
CPT 82233, 82234