A nurse is caring for a client who is at 16 weeks of gestation and has hyperemesis gravidarum. Which of the following clinical findings should the nurse expect?

A. Constipation is not directly associated with hyperemesis gravidarum. B. Ketonuria occurs due to prolonged vomiting and starvation, indicating fat breakdown for energy. C. Hypertension is unrelated to hyperemesis gravidarum. D. Polyhydramnios refers to excessive amniotic fluid and is not a feature of hyperemesis gravidarum.