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  • Title: Maximizing calcium and phosphate content in neonatal parenteral nutrition solutions using organic calcium and phosphate salts.
    Author: Bouchoud L, Fonzo-Christe C, Sadeghipour F, Bonnabry P.
    Journal: JPEN J Parenter Enteral Nutr; 2010; 34(5):542-5. PubMed ID: 20852183.
    Abstract:
    BACKGROUND: The provision of high amounts of calcium and phosphate in parenteral nutrition (PN) solution for neonates is important for bone mass accretion. Because of the risk of calcium phosphate precipitation, a well-documented incompatibility for inorganic salts, the concentrations of these electrolytes in PN are generally limited to 5 mmol/L. The aim of this study was to assess the risk of precipitation of calcium phosphate when organic calcium and phosphate salts are used instead of inorganic salts. METHODS: Precipitation curves were determined for inorganic and organic calcium and phosphate salts in a PN solution favorable to precipitation (low concentration of amino acids and glucose) using visual inspection and particle counts. RESULTS: The use of organic phosphate salt was associated with a decreased risk of precipitation of calcium phosphate. No precipitation occurred up to a concentration of 50 mmol/L of calcium and phosphate. In contrast, organic calcium salt only slightly decreased the risk of precipitation. CONCLUSION: Up to 50 mmol/L of organic calcium and phosphate salts can be safely mixed in PN, even in unstable conditions, making it possible to follow the current European recommendations for requirements in neonates.
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