A pregnant client G1, PO with severe daily nausea and vomiting at 17 weeks is diagnosed with Hyperemesis Gravidarum. The nurse understands that which factor is most associated with the development of Hyperemesis Gravidarum?

A. Fetal position refers to the relationship of a specific reference point on the fetus (usually the occiput, sacrum, or mentum) to the maternal pelvis, such as left occiput anterior (LOA). It describes how the fetus is oriented in relation to the maternal pelvis, not the relationship of fetal body parts to each other.

B. Fetal lie refers to the longitudinal axis of the fetus in relation to the maternal spine. It can be longitudinal, transverse, or oblique. While important in assessing labor, it does not describe the fetal body parts in relation to each other.

C. Fetal presentation refers to the part of the fetus that enters the maternal pelvis first, such as cephalic (head), breech (buttocks), or shoulder. Presentation does not describe the alignment of fetal body parts relative to each other.

D. Fetal attitude describes the relationship of the fetal body parts to one another, specifically the degree of flexion or extension of the fetal head, arms, and legs. The most common and favorable attitude for labor is general flexion, where the head is flexed, arms and legs are flexed, and the back is curved. This attitude allows the smallest diameter of the fetal head to pass through the birth canal, facilitating vaginal delivery.

A. While preterm infants are at increased risk for hypoglycemia due to limited glycogen stores and immature metabolic regulation, dexamethasone does not directly prevent hypoglycemia. Its pharmacologic action is not related to neonatal blood sugar management.

B. Dexamethasone is a corticosteroid given to pregnant clients at risk of preterm birth, typically between 24 and 34 weeks gestation. The medication crosses the placenta and stimulates fetal lung epithelial cells to produce surfactant, a substance that reduces alveolar surface tension, enabling the lungs to remain open for effective gas exchange after birth. By accelerating lung development, dexamethasone significantly reduces the risk of respiratory distress syndrome (RDS), intraventricular hemorrhage, necrotizing enterocolitis, and neonatal mortality. The most benefit is observed when delivery occurs 24–48 hours after the first dose but within 7 days of administration.

C. While corticosteroid therapy can have secondary benefits, including a reduction in intraventricular hemorrhage, this is not the primary purpose of dexamethasone administration. The main goal remains enhancing fetal lung maturity.

D. Dexamethasone is not a tocolytic and does not suppress preterm labor contractions. Tocolytic medications, such as magnesium sulfate, nifedipine, or indomethacin, are used for short-term suppression of uterine activity to allow time for corticosteroids to enhance fetal lung maturity.