|Method(s)||Enzyme-linked Fluorescent Assay|
|Collect||One light green top tube (lithium heparin)|
0.5 mL plasma (0.3 mL minimum) at 2-8°C.
|Stability||Refrigerated, 48 hours.|
Use of serum is discouraged. Although testing may be performed on serum, it is important that serial samples are collected in the same sample type.
|Preferred Specimen Collection Device(s)|
See laboratory report for more detailed reference range information.