Estimated Blood Loss After Delivery

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Vaginal Bleeding After Birth: When to Call a Doctor - WebMD

    https://www.webmd.com/women/vaginal-bleeding-after-birth-when-to-call-doctor
    Vaginal Bleeding After Birth: When to Call a Doctor ... It’s how your body gets rid of the extra blood and tissue in your uterus that ... the uterus squeezes after delivery to stop bleeding ...

Accuracy of Blood Loss Estimation After Vaginal Delivery ...

    https://www.clinicaltrials.gov/ct2/show/NCT00462839
    Apr 19, 2007 · Post-partum hemorrhage (PPH) is defined as blood loss greater than 500 mL after vaginal delivery. Delayed diagnosis of PPH is a major cause of maternal morbidity and mortality. Obstetricians estimate blood loss at delivery by visual estimation of blood collected in the obstetric drapes. Blood is often mixed with urine and surgical sponges.

Quantitative Blood Loss in Obstetric Hemorrhage ACOG

    https://www.acog.org/en/Clinical/Clinical%20Guidance/Committee%20Opinion/Articles/2019/12/Quantitative%20Blood%20Loss%20in%20Obstetric%20Hemorrhage
    The purpose of this Committee Opinion is to review and clarify the current evidence regarding the accuracy of methods available for determining obstetric blood loss, including quantitative and visual estimated blood loss methods, and to identify research gaps.

Quantification of Blood Loss: AWHONN Practice Brief Number ...

    https://www.jognn.org/article/S0884-2175(15)31768-8/fulltext
    Table 2 Tips for Quantification of Blood Loss (QBL) During Cesarean Births; 1. Begin the process of QBL when the amniotic membranes are ruptured or after the infant is born. 2. Suction and measure all amniotic fluid within the suction canister of collected fluid before delivery of the placenta.

Methods for estimating blood loss after vaginal birth to ...

    https://www.cochrane.org/CD010980/PREG_methods-estimating-blood-loss-after-vaginal-birth-improve-maternal-outcomes
    Sep 13, 2018 · Overall, the evidence in this review is insufficient to support the use of one method over another for blood loss estimation after vaginal birth. In general, the quality of evidence for our predefined outcomes ranged from low to high quality, with downgrading decisions due to imprecision.

Accuracy of Estimated Blood Loss in Predicting Need for ...

    https://www.ncbi.nlm.nih.gov/pubmed/26007310
    Accuracy of Estimated Blood Loss in Predicting Need for Transfusion after Delivery. ... In this modern obstetric, cohort EBL is weakly correlated with cEBL, suggesting that accuracy of clinical estimates of blood loss is modest. However, EBL predicts need for transfusion, with optimal thresholds of 500 mL for a vaginal delivery and 1,000 mL in ...Author: Shayna N. Conner, Methodius G. Tuuli, Ryan Colvin, Anthony L. Shanks, George A. Macones, Alison G. C...

Knowledge of blood loss at delivery ... - PubMed Central (PMC)

    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5012285/
    Aug 31, 2016 · Over two-thirds of patients did not provide estimates for normal blood loss after an uncomplicated vaginal or cesarean delivery. Among those who were willing to provide estimates, patients reported that the mean normal blood loss is higher after an uncomplicated cesarean delivery compared with an uncomplicated vaginal delivery.Author: Michaela K. Farber, Claire M. Miller, Bharathi Ramachandran, Priya Hegde, Kulsum Akbar, Lawrence Tim...

Maximum Allowable Blood Loss (ABL) Without Transfusion ...

    https://www.mdcalc.com/maximum-allowable-blood-loss-abl-without-transfusion
    The Maximum Allowable Blood Loss (ABL) estimates the maximum allowable blood loss intraoperatively before transfusion should be considered, based on initial hemoglobin, weight and final hemoglobin. ... Maximum Allowable Blood Loss (ABL) Without Transfusion. ... Consider transfusing if estimated blood loss exceeds calculated allowable blood loss.

REFERENCES - UpToDate

    https://www.uptodate.com/contents/overview-of-postpartum-hemorrhage?search=post%20partum%20hemorrhage&source=search_result&selectedTitle=1~150&usage_type=default&display_rank=1
    Although PPH is classically defined by the volume of blood loss (ie, estimated blood loss ≥500 mL after vaginal birth or ≥1000 mL after cesarean delivery), this diagnosis is problematic because bleeding may not be visible externally or blood in collection devices may be mixed with amniotic fluid.

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