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<p>A complete blood cell count (CBC) characterizes the cellular components of blood. It is one of the most frequently performed blood tests of hospitalized patients, including infants in a NICU. We quantified the percentage of Intermountain Health NICU patients who, during the past ten years, had a CBC drawn at birth or within the first two hours thereafter. The percentage progressively dropped annually, from 54% in 2016 to 13% in 2025. We authored this Perspective, (1) to review the array of diagnostic information that can be gained by a CBC at NICU admission, and (2) to emphasize that the initial CBC can be drawn from otherwise discarded fetal blood in the umbilical cord. Using that method avoids the blood volume reduction, and the pain, associated with infant phlebotomy. We hope these reminders support NICU providers in making informed decisions about ordering a CBC at birth.</p>

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A CBC drawn postnatally from umbilical cord blood can provide valuable diagnostic information for infants admitted to the NICU

  • 期刊论文

  • 发表日期：

    2026年6月25日

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  • Robert D. Christensen,
  • Timothy M. Bahr,
  • Bailey B. Zeiler,
  • Stephen D. Minton,
  • Catherine L. Chang,
  • Jessica Davidson,
  • Sara J. Ilstrup,
  • Patrick D. Carroll,
  • David A. Kaufman,
  • Robin K. Ohls

摘要

A complete blood cell count (CBC) characterizes the cellular components of blood. It is one of the most frequently performed blood tests of hospitalized patients, including infants in a NICU. We quantified the percentage of Intermountain Health NICU patients who, during the past ten years, had a CBC drawn at birth or within the first two hours thereafter. The percentage progressively dropped annually, from 54% in 2016 to 13% in 2025. We authored this Perspective, (1) to review the array of diagnostic information that can be gained by a CBC at NICU admission, and (2) to emphasize that the initial CBC can be drawn from otherwise discarded fetal blood in the umbilical cord. Using that method avoids the blood volume reduction, and the pain, associated with infant phlebotomy. We hope these reminders support NICU providers in making informed decisions about ordering a CBC at birth.