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Test ID: FABP Amyloid Beta-Protein

Reporting Name

Amyloid B-Protein

Specimen Type

Plasma EDTA

Specimen Required

Draw blood in a lavender-top (EDTA) tube(s). Spin down and send

3 mL of EDTA plasma frozen in plastic vial.

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma EDTA Frozen 30 days

Reference Values

Adult Reference Range(s):

20-80 pg/ml

Day(s) and Time(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Inter Science Institute. It has not been cleared or approved by the US Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FABP Amyloid B-Protein 70073-2


Result ID Test Result Name Result LOINC Value
Z0940 Amyloid B-Protein 70073-2

Analytic Time

28 days

Method Name

Radioimmunoassay (RIA)

Clinical Information

Amyloid B-Protein is a peptide that ranges in size from 28-43 amino acids. Most fragments have the same biological activity as the whole molecule. Amyloid B-Protein causes vascular and cerebral plaque formation. Insoluble fibrils of Amyloid B-Protein accumulate in adrenal blood vessels and un neutritic plaques. Occurrence of plaques are present in normal brain but in a much less dense degree as in Alzheimer's disease patients. Amyloid B-Protein is also found in elevated levels in patients with Down's Syndrome. Substance P has been found to counteract the effects of Amyloid B-Protein.

Mayo Clinic Laboratories | Hematology Catalog Additional Information: