Beta-Amyloid Ratio (1-42/1-40), CSF, Mayo, RefLab
SoftLab Order Code
AMYR
Epic Order Name
Beta-Amyloid Ratio (1-42/1-40), CSF, Mayo, RefLab
Epic Order ID
LAB4281
Laboratory
Reference Lab
Additional Test Information
This test is intended for use in adult patients aged 55 years and older. If evaluating an individual 54 years or younger, order ADEVL / Alzheimer Disease Evaluation, Spinal Fluid.
Sample Type
CSF
Collection Container
Blue cap Sarstedt collection tube - available from Reference Lab
Alternative Collection Container
None. Polystyrene tubes are not acceptable.
Collecting Volume
1.5 mL
Minimum Collecting Volume
750 mL
Storage or Stability
Refrigerated
Causes for Rejection
Gross hemolysis, gross lipemia, gross icterus. Polystyrene collection tube.
Patient Preparation