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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Aldosterone-to-renin ratio ： ウィキペディア英語版 Aldosterone-to-renin ratio Aldosterone-to-renin ratio (ARR) is the mass concentration of aldosterone divided by the plasma renin activity in blood plasma. The aldosterone/renin ratio is recommended as screening tool for primary hyperaldosteronism.〔 ()〕 ==Interpretation== Aldosterone-to-renin ratio can be given in ng/dL per ng/(mL·h), that is, nanogram per decilitre of aldosterone per nanogram per (millilitre x hour) of renin. Also, it can be given in pmol/liter per µg/(liter·h), where aldosterone is given in molar concentration. The former can be converted to the latter by multiplying with 27.6. Also, the inverse value is occasionally given, that is, the ''renin-to-aldosterone ratio'', whose value is the multiplicative inverse of the ''aldosterone-to-renin ratio''. The cutoff normal individuals from those with primary hyperaldosteronism is significantly affected by the conditions of testing, such as posture and time of day. On average, an ARR cutoff of 23.6 ng/dL per ng/(mL·h), expressed in alternative units as 650〔Converted from mass concentration value by multiplying with 27.6〕 pmol/liter per µg/(liter·h), has been estimated to have a sensitivity of 97% and specificity of 94%.〔''(Aldosterone-Renin Ratio in Primary Hyperaldosteronism )'' by Allan S. Brett. Posted: 03/15/2005; Journal Watch. 2005;4(2)〕 An ARR value in an individual that is ''higher'' than the cutoff indicates primary hyperaldosteronism. If the inverse ratio (i.e. renin-to-aldosterone) ratio is used, a value ''lower'' than the cutoff indicates primary hyperaldosteronism. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Aldosterone-to-renin ratio」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.