Baseline Hemoglobin Variability by Measurement Technique in Pregnant People on the Day of Childbirth

( Anaesthesia. 2024;79:178–185. DOI:10.1111/anae.16174) Obstetric hemorrhage is a leading cause of preventable maternal morbidity and mortality worldwide, with over 44,000 deaths annually, mostly in low-income and middle-income countries. It primarily occurs after vaginal birth in late pregnancy. Despite advanced medical interventions, high-income countries still face maternal morbidity from hemorrhage due to high anemia rates, placental adhesive disorders, obesity, and cardiovascular disease. Accurate assessment of hemoglobin concentration is crucial for managing hemorrhage, but traditional lab tests are slow.