Mineral content of infant formula after treatment with sodium polystyrene sulfonate or calcium polystyrene sulfonate

被引:0
|
作者
Fassinger, N [1 ]
Dabbagh, S [1 ]
Mukhopadhyay, S [1 ]
Lee, DY [1 ]
机构
[1] Wayne State Univ, Childrens Hosp Michigan, Dept Pediat, Detroit, MI 48201 USA
来源
ADVANCES IN PERITONEAL DIALYSIS/1998, VOL 14 | 1998年 / 14卷
关键词
hyperkalemia; neonates; renal insufficiency; infant formula; potassium exchange resin;
D O I
暂无
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Options for the management of infants with hyperkalemia secondary to renal insufficiency are limited for infants not maintained on dialysis. Precipitation of potassium (K+) from infant formula with sodium polystyrene sulfonate (KX) prior to feeding has been reported However; its effect on calcium (Ca2+) and sodium (naf) has not been quantitatively defined. The purpose of this study was to examine the effects of two K+ exchange resins: KX and calcium polystyrene sulfonate (RC) on Na+, K+, and Ca2+. Infant formula powder (Similac PM60/40, Ross Laboratories, Columbus, OH, USA) was prepared with deionized water (DW) and KX or RC (I g/mEq of K+) was added. The formula was decanted after 50 minutes and Na+, K+, and Ca2+ were assayed in the supernatant. Na+ and K+ were also assayed in ready-to-feed PM 60/40 (RTF). KX decreased the K+ concentration by 4.5 fold (P < 0.001) and increased the Na+ content by 3.8 fold (P < 0.001). In RC there was a 1.6-fold increase in Ca2+ content (P < 0.001), and a 13% decrease in K+ concentrations (P < 0.05). Preparation of the formula with DW reduced the K+ concentration by 30% compared to ready-to-feed formula (P < 0.001). We conclude that, although KX significantly reduces the K+ content of formulas, DW may be a more practical and convenient method of preparing formula for the hyperkalemic infant.
引用
收藏
页码:274 / 277
页数:4
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