Coleta de amostras sanguíneas no cordão umbilical para realização de exames laboratoriais: uma revisão da literatura

Abstract

Objective: to present scientific evidence on guidelines for collecting umbilical cord blood for laboratory examination of newborns, published from 2011 to 2021. Methodology: integrative literature review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Databases used: Virtual Health Library, LILACS, MEDLINE, PUBMED, CINAHL, UpToDate and Cochrane Library. Results: 12 studies were analyzed, 1 of which was a review article, revealing positivity in collecting samples from umbilical cord blood; and 1 case study, describing the benefits of this collection. The other 10 studies were prospective, case-control studies. In 7 studies, the quality of laboratory tests obtained from umbilical cord blood and directly from newborns, in the evaluation of sepsis, was compared, with positive results; and in the other 3, they observed favorable outcomes in the reduction of blood transfusions when collected from the umbilical cord when comparing direct collection, with better hematological indices. Conclusions: The findings support the feasibility and accuracy of umbilical blood for collection of admission laboratory tests. This reduces phlebotomy loss and allows you to collect more blood. There is an increase in sensitivity for blood cultures when collection teams are trained for this purpose.