Effects of storage and repeated freezing and thawing on plasma cholinesterase activity.
Plasma cholinesterase activity, determined using either benzoyl choline or butyrylthiocholine as substrate, is stable for prolonged periods (greater than 12 months) when stored at -20 degrees C. Likewise, repeated freezing and thawing of plasma did not markedly affect cholinesterase activity.
D001588:Benzoylcholine / Q000378:metabolism; D002092:Butyrylthiocholine / Q000378:metabolism; D002802:Cholinesterases / Q000097:blood*; D005615:Freezing; D006801:Humans; D013048:Specimen Handling
D001588:Benzoylcholine; D002092:Butyrylthiocholine; D002802:Cholinesterases