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Changes in Body Protein, Body Potassium, and Lean Body Mass During Total Parenteral Nutrition
Author(s) -
McNeill Kenneth G.,
Harrison Joan E.,
Mernagh John R.,
Stewart Sandra,
Jeejeebhoy Khursheed N.
Publication year - 1982
Publication title -
journal of parenteral and enteral nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.935
H-Index - 98
eISSN - 1941-2444
pISSN - 0148-6071
DOI - 10.1177/0148607182006002106
Subject(s) - lean body mass , parenteral nutrition , potassium , body water , anthropometry , chemistry , body weight , medicine , zoology , nitrogen , body mass index , endocrinology , biology , organic chemistry
Lean body mass by anthropometry (AMLBM), total body potassium (TBK), and total body nitrogen (TBN) by prompt gamma analysis, are reported in 38 malnourished patients during total parenteral nutrition. Over long periods (>2 months) TBN increased 32% while AMLBM and TBK rose only by 9.2 and 9.5%, respectively. Changes in AMLBM and in K were significantly correlated, but changes in nitrogen were not correlated with either. From short‐term studies, the same conclusions can be obtained; although there are changes in lean body mass and in potassium, there is no correlation with such changes in nitrogen. With repletion, changes in body protein are not necessarily related to changes in AMLBM or to TBK: the latter two reflecting total and intracellular water, respectively, but not protein content.