Amyloid Beta 1-42 to Amyloid Beta 1-40 Ratio Measurement

**Semantic type:** Laboratory Procedure

**Definition:** The determination of the ratio of the amyloid beta 1-42 to amyloid beta 1-40 in a sample. The measurement may be expressed as a ratio or percentage.

**Synonyms:** - AB42AB40 - Amyloid Beta 1-42/Amyloid Beta 1-40 - Amyloid Beta 1-42/Amyloid Beta 1-40