Testing umbilical cord tissue for drugs: Lower analytical limits, better concordance with meconium results

Negrusz, Adam; Jones, Joseph

doi:10.1016/j.jpeds.2019.01.009

The Journal of Pediatrics

2019

DOI: 10.1016/j.jpeds.2019.01.009

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Testing umbilical cord tissue for drugs: Lower analytical limits, better concordance with meconium results

Adam Negrusz

Joseph Jones

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2024

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Biological Testing and Interpretation of Laboratory Results Associated with Detecting Newborns with Substance Exposure

McMillin,

Morad,

Boyd

et al. 2024

Clinical Chemistry

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Background Substance use during pregnancy is common, as is biological testing that is intended to help identify prenatal exposures. However, there is no standardized requirement for biological testing with either maternal or newborn specimens, nor is there standardization related to when testing occurs, how frequently testing occurs, what specimen(s) to test, what substances to test for, or how to perform testing. Content We review common specimen types tested to detect maternal and newborn substance exposure with a focus on urine, meconium, and umbilical cord tissue. We also review common analytical methods used to perform testing, including immunoassay, and mass spectrometry platforms. Considerations regarding the utilization of testing relative to the purpose of testing, the drug analyte(s) of interest, the specific testing employed, and the interpretation of results are emphasized to help guide decisions about clinical utilization of testing. We also highlight specific examples of unexpected results that can be used to guide interpretation and appropriate next steps. Summary There are strengths and limitations associated with all approaches to detecting substance exposure in pregnant persons as well as biological testing to evaluate a newborn with possible substance exposure. Standardization is needed to better inform decisions surrounding evaluation of substance exposures in pregnant people and newborns. If biological sampling is pursued, testing options and results must be reviewed in clinical context, acknowledging that false-positive and -negative results can and do occur.

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Biological Testing and Interpretation of Laboratory Results Associated with Detecting Newborns with Substance Exposure

McMillin,

Morad,

Boyd

et al. 2024

Clinical Chemistry

View full text Add to dashboard Cite

show abstract

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Testing umbilical cord tissue for drugs: Lower analytical limits, better concordance with meconium results

Cited by 1 publication

References 2 publications

Biological Testing and Interpretation of Laboratory Results Associated with Detecting Newborns with Substance Exposure

Biological Testing and Interpretation of Laboratory Results Associated with Detecting Newborns with Substance Exposure

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