Extended Abstract

Quantitative blood loss: a validation study

Authors: Keely K Ulmer (Department of Obstetrics and Gynecology, University of Iowa Carver College of Medicine, Iowa City, Iowa) , Stephanie Radke (Department of Obstetrics and Gynecology, Carver College of Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, 52242) , Kelli Ryckman (Department of Epidemiology, College of Public Health, University of Iowa, Iowa City, Iowa, 52242)

  • Quantitative blood loss: a validation study

    Extended Abstract

    Quantitative blood loss: a validation study

    Authors: , ,


Objective: To determine if quantitative blood loss would correlate to predicted blood loss based on change in blood concentration of hemoglobin.

Conclusion: The correlation between calculated blood using modified Brecher’s formula showed poor overall correlation to quantitative blood loss. There was a higher correlation at blood loss greater than 1500 cc which is where estimated blood loss has been shown to be most poor. Possible reasons for this poor correlation include maternal factors influencing hemoglobin levels, gestational age, error in blood loss calculation, inaccuracy of Brecher’s formula in pregnancy.

Keywords: Postpartum hemorrhage, calculated blood loss, quantitative blood loss

How to Cite:

Ulmer, K. K. & Radke, S. & Ryckman, K., (2021) “Quantitative blood loss: a validation study”, Proceedings in Obstetrics and Gynecology 10(2): 8, 1-3. doi: https://doi.org/10.17077/2154-4751.1525

Rights: Copyright © 2021 the authors

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Published on
01 Jun 2021
Peer Reviewed
CC BY 4.0