How does a parenteral two-in-one solution differ from a total nutrition admixture (TNA) solution?
                                
                                
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                                    4 min read                                
                            
                                First introduced decades ago, the development of stable intravenous lipid emulsions profoundly changed parenteral nutrition, fundamentally altering how a parenteral two-in-one solution differs from a total nutrition admixture (TNA) solution. These two primary formulation types offer distinct approaches for delivering vital nutrients intravenously, each with its own set of clinical considerations for patient care.