A nurse is caring for a client at 29 weeks gestation that arrived to OB triage with complaints of uterine contractions every 45 minutes.
After the initial assessment, an order for Nifedipine was received.
The nurse is now evaluating the effects of the medication.
Which of the following assessments indicates the medication was effective?

Choice A rationale

Oligohydramnios refers to a condition characterized by a deficiency in amniotic fluid. It is not a common risk factor for hyperemesis gravidarum, which is more related to hormonal changes and genetic predisposition.

Choice B rationale

Twin gestations significantly increase the levels of human chorionic gonadotropin (hCG), leading to a higher incidence of hyperemesis gravidarum. Elevated hCG levels correlate directly with the severity of nausea and vomiting in pregnancy.

Choice C rationale

Anemia does not have a direct causal relationship with hyperemesis gravidarum. Hyperemesis may contribute to the development of anemia due to nutritional deficiencies, but it is not a predisposing risk factor.

Choice D rationale

Molar pregnancy, a gestational trophoblastic disease, causes significantly elevated levels of hCG, leading to an increased likelihood of hyperemesis gravidarum. This condition triggers extreme nausea and vomiting due to excessively high hormone levels.

Choice E rationale

A history of hyperemesis in previous pregnancies strongly predicts recurrence in subsequent pregnancies. This suggests a genetic or environmental predisposition to severe nausea and vomiting.

Choice A rationale

Abdominal pain with no vaginal bleeding is not typically associated with placenta previa. This condition usually involves painless vaginal bleeding as the placenta covers or is near the cervix, not causing abdominal pain without bleeding.

Choice B rationale

Painless red vaginal bleeding is characteristic of placenta previa. The condition occurs when the placenta covers the cervix, leading to painless bleeding as the cervix begins to thin or dilate.

Choice C rationale

Sharp abdominal pain is not a common sign of placenta previa. This symptom is more indicative of conditions such as placental abruption, where the placenta detaches from the uterine wall.

Choice D rationale

Intermittent abdominal pain following the passage of bloody mucus is not typical of placenta previa. This pattern may suggest labor or other complications, not the classic presentation of painless bleeding seen in placenta previa.