What is a common complication that a nurse should be aware of during the second trimester?

The development of gestational diabetes is indeed a common complication that can arise during the second trimester. Gestational diabetes occurs when the body cannot produce enough insulin to regulate blood sugar levels adequately during pregnancy. This condition typically develops because of hormonal changes that affect insulin sensitivity and is most commonly screened for between the 24th and 28th weeks of gestation. Awareness of this complication is crucial as it can lead to various negative outcomes for both the mother and the fetus, including increased risks for larger birth weights, preterm birth, and the potential for the mother to develop type 2 diabetes later in life.

The other options do not typically present as common complications during the second trimester. Ectopic pregnancy usually occurs in the first trimester and is characterized by an embryo implanting outside the uterus. While fetal movement might become noticeable in the second trimester, significant limitations due to fetal size generally occur later in pregnancy. Increased blood flow to the abdomen does take place, as the body adapts to support the growing fetus; however, it is a normal physiological change rather than a complication that poses a significant risk requiring close monitoring.