title: Reexamination of the conditions for processing and storing of blood for plasma renin assay.
abstract: Reexamination of conditions for processing and storing blood for plasma renin assay confirmed that plasma can be stored at -20 degrees C for at least 4 weeks without significant changes in active renin level. The active renin concentration is increased by storage at 4 degrees C because of conversion from inactive renin.
mesh_terms: D000328:Adult; D001800:Blood Specimen Collection; D005260:Female; D005615:Freezing; D006801:Humans; D008875:Middle Aged; D012083:Renin / Q000097:blood*; D013048:Specimen Handling; D013997:Time Factors
chemical_list: D012083:Renin