Which sign is associated with polyhydramnios?

Polyhydramnios, which refers to an excessive accumulation of amniotic fluid, is commonly associated with an increase in uterine size beyond what is expected for the gestational age of the fetus. This larger-than-normal uterine size can be attributed to the increased volume of amniotic fluid.

In clinical practice, when polyhydramnios is suspected, the assessment typically includes measuring the fundal height and performing an ultrasound, which can confirm the presence of the excess amniotic fluid. The increased uterine size can lead to various complications as well, including discomfort, increased risk of preterm labor, and difficulties during labor and delivery.

Considering the other options, difficulties in labor may arise due to various factors but are not directly indicative of polyhydramnios; positive fetal heart tones are expected regardless of fluid levels, indicating fetal well-being rather than an abnormal condition; and sudden weight loss is not characteristic of polyhydramnios, as the condition is more likely to lead to increased weight gain due to the additional fluid. Thus, the association of polyhydramnios with a larger-than-expected uterine size stands out as the most direct and clinically relevant sign.