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Pausing TPN to Decrease Abnormal Newborn Screens: A NICU Quality Initiative.

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This summary is machine-generated.

Pausing total parenteral nutrition (TPN) before newborn screening (NBS) significantly reduces false positives in neonates. This quality improvement initiative also lowers hospital costs associated with repeat testing.

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Area of Science:

  • Neonatal Medicine
  • Clinical Quality Improvement
  • Biochemical Screening

Background:

  • Newborn screening (NBS) is crucial for detecting metabolic and genetic disorders.
  • False positives in NBS, particularly in very low birth weight (VLBW) neonates, often stem from acute illnesses and treatments like total parenteral nutrition (TPN).
  • Elevated TPN can interfere with amino acid profiles, leading to repeat testing and increased healthcare costs.

Purpose of the Study:

  • To implement and evaluate a quality improvement (QI) initiative to reduce false positive NBS results in a neonatal intensive care unit (NICU).
  • To assess the impact of a TPN interruption protocol on NBS accuracy and hospital resource utilization.

Main Methods:

  • A QI initiative was conducted in a NICU at a quaternary care center.
  • The intervention involved pausing TPN for 4 hours before NBS collection, with a dextrose-containing fluid administered during the pause.
  • Two Plan-Do-Study-Act (PDSA) cycles were implemented to optimize the timing of TPN interruption and NBS collection, aligning with routine laboratory work.

Main Results:

  • The rate of abnormal NBS in VLBW neonates decreased significantly from 66% to 49% (P < 0.006).
  • The overall rate of abnormal NBS across all admissions dropped from 45.2% to 28.8% (P < 0.0001).
  • Hospital costs for NBS cards decreased from $244.79 to $170.86 per patient.

Conclusions:

  • Temporarily pausing TPN before NBS collection effectively reduces abnormal screening results.
  • This QI intervention successfully decreased false positives in NBS for both VLBW neonates and the general NICU population.
  • The protocol also yielded significant cost savings in NBS-related expenses.