title: [Amylase in serum, amylase excretion and the amylase-creatinine-ratio. Individual variation and diagnostic specifity (author's transl)].
abstract: The amylase activity in serum, the amylase excretion and the amylase-creatinine-ratio was investigated in 25 volunteers monthly for one year and daily for two weeks. The intraindividual variation of the amylase-activity in serum showed only small oscillations. The large refernce value of the group and the need to use individual reference values prefer the 24 hour amylase excretion as a diagnostic tool. The amylase-creatinine-ratio showed individual and seasonal large variations. Therefore the ratio is not suitable for diagnostic questions.
mesh_terms: D000328:Adult; D000681:Amylases / Q000097:blood*; D003404:Creatinine / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008657:Metabolic Clearance Rate; D008875:Middle Aged; D012621:Seasons
chemical_list: D003404:Creatinine; D000681:Amylases
vernacular_title: Diagnostische Wertigkeit der individuellen Langzeitvariation der Amylaseaktivität im Serum und Urin.