From the Research
Hemoglobin Range for Fetus with Intrauterine Growth Restriction (IUGR)
The expected Hemoglobin (Hb) range for a fetus with intrauterine growth restriction (IUGR) at 29 weeks gestation is not directly stated in the provided studies. However, some studies provide information on the relationship between maternal hemoglobin levels and fetal growth restriction.
Maternal Hemoglobin Levels and Fetal Growth Restriction
- A study published in 2015 1 found that increased maternal hemoglobin levels at 27-29 weeks gestation are associated with reduced birthweight and an increased risk of admission to the Neonatal Unit and adverse fetal outcome.
- Another study published in 2000 2 found that hemoglobin concentrations >120 g/L at the end of the second trimester are associated with a increased risk of preeclampsia and intrauterine growth restriction.
Fetal Hemoglobin Levels and Intrauterine Growth Restriction
- A study published in 2012 3 found that pregnancies complicated by maternal fetal hemoglobin (HbF) levels ≥ 70% are at increased risk of intra-uterine growth restriction or small for gestational age (SGA) fetuses.
Reference Ranges for Hematocrit and Blood Hemoglobin Concentration
- A study published in 2009 4 developed reference ranges for hematocrit and blood hemoglobin concentration during the neonatal period, but did not provide specific information on the expected hemoglobin range for a fetus with IUGR at 29 weeks gestation.
Associations of Serum D-dimer and Glycosylated Hemoglobin Levels with Fetal Growth Restriction
- A study published in 2024 5 found that high D-dimer and glycosylated hemoglobin (HbA1c) levels are risk factors for third-trimester fetal growth restriction in gestational diabetes mellitus patients, but did not provide information on the expected hemoglobin range for a fetus with IUGR at 29 weeks gestation.