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[Hemocytometric and morphologic studies of red cells in cord blood]
F Calero Moreno1, A Villegas Martínez, F Valverde Moreno
1Departamento de Medicina Interna, Hospital de San Carlos, Universidad Complutense de Madrid.
Insights
This study analyzes red blood cell indexes in 120 newborns, establishing normal ranges for Mean Corpuscular Volume (MCV) and Hemoglobin F (Hb F) in cord blood.
Area of Science:
- Hematology
- Neonatal physiology
- Pediatric research
Context:
- Newborns exhibit distinct red blood cell parameters compared to infants and adults.
- Understanding these neonatal hematological differences is crucial for accurate clinical assessment.
- Umbilical cord blood analysis provides a snapshot of fetal erythropoiesis.
Purpose:
- To establish reference ranges for key red blood cell indices in a local newborn population.
- To characterize the typical Hemoglobin F (Hb F) concentration in neonates.
- To investigate the impact of biological variables on neonatal red blood cell indices.
Summary:
- Red cell mass is elevated in newborns.
- The lower limit of normal Mean Corpuscular Volume (MCV) was determined to be 99.69 fL.
- Mean Hemoglobin F (Hb F) concentration was found to be 74.70 +/- 10.69%.
Impact:
- Provides essential normative data for neonatal hematological evaluation.
- Aids in the early detection of potential red blood cell disorders in newborns.
- Highlights the importance of considering gestational and biological factors in interpreting neonatal blood counts.
Abstract:
Authors present red cell indexes of 120 newborns with normal haemoglobin pattern. In the newborn there is an increase of the red cell mass with regard to the infancy and adult life. The lower limit of normality in our environment for MCV is 99.69 fl. The Hb F concentration is 74.70 +/- 10.69%. The differential aspects of the red blood cells in the umbilical cord blood are commented. The influence of several biological variables on the newborn's red cell indexes are described.