1. Presented by Eric A. Gehrie, MD and prepared by Lorraine N. Blagg, MA, MLS(ASCP)SBB

Clinical Vignette

A newborn baby was born by spontaneous vaginal delivery at 39 weeks gestation with an Apgar score of 8 at one minute of life. The cord blood was sent to the lab for a cord blood evaluation. The neonate's initial total bilirubin level is 3.4 mg/dL and mom has a medical history of O Positive with a negative antibody screen.

Transfusion Medicine results:





 

Question:
What is the most likely explanation of the patient's results?