Can an arterial line be used for TPN? The Critical Differences in Vascular Access
                                
                                
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                                    3 min read                                
                            
                                According to StatPearls, Total Parenteral Nutrition (TPN) is a highly concentrated, hyperosmolar solution indicated when the gastrointestinal tract cannot be used for feeding. An emphatic and critical point of patient safety is understanding why, **can an arterial line be used for TPN**, the answer is unequivocally and dangerously 'no.'.