A pregnant client who is Rh negative asks the nurse how many children they will be able to have before Rh incompatibility causes the fetus to die.
What is the nurse's best response?

Choice A rationale

Following the evacuation of a hydatidiform mole, the client is at risk for developing gestational trophoblastic neoplasia (GTN). Pregnancy must be avoided for at least six to twelve months to ensure that any persistent or new human chorionic gonadotropin (hCG) elevation is due to GTN and not a new normal pregnancy. Three months is the minimum duration often discussed.

Choice B rationale

Follow-up care, including weekly hCG level monitoring until the level is undetectable, then monthly for six to twelve months, is crucial for early detection of malignant transformation (choriocarcinoma). Therefore, six weeks of follow-up care is insufficient for proper surveillance and risk management.

Choice C rationale

A history of a hydatidiform mole is indeed a risk factor for recurrence, with a recurrence rate of approximately 1–2%. However, the immediate priority for discharge teaching focuses on preventing the hCG confounding effect of a new pregnancy and ensuring compliance with the necessary hCG monitoring protocol.

Choice D rationale

Chemotherapy is indicated if the hCG levels plateau or increase, or if there is evidence of metastasis, rather than if they decrease. A decrease in hCG levels is the desired outcome after evacuation and indicates successful treatment without the need for chemotherapy.

Choice A rationale

Contractions that are only 20 mm Hg in strength with a baseline resting tone of 5 to 8 mm Hg indicate hypotonic uterine dysfunction. This is characterized by insufficient uterine contraction power, not hypertonic resting tone. Oxytocin is an exogenous hormone that mimics the effects of the naturally released hormone, acting on uterine smooth muscle cells to increase the frequency, duration, and strength (intensity) of the contractions, which should ideally be 50 to 80 mm Hg during active labor.

Choice B rationale

Suggesting relaxation is inappropriate because these contraction patterns are ineffective and unlikely to spontaneously strengthen enough to cause adequate cervical change. Hypotonic contractions typically lead to a protracted labor pattern. The smooth muscle fibers of the uterus require sufficient stimulation to fully activate the contractile proteins actin and myosin. The low intensity and inadequate pressure of these contractions will not result in optimal cervical effacement and dilation.

Choice C rationale

These contractions are hypotonic, not hypertonic. Hypertonic contractions are characterized by high resting tone (above 15 mm Hg) and often painful, ineffective, erratic contractions. A period of rest is generally recommended for hypertonic contractions to reduce uterine irritability and oxygen consumption. However, for hypotonic dysfunction, augmentation (Choice A) is usually required to safely expedite the labor process and reduce risk of infection.

Choice D rationale

While upright positions like sitting or walking can use gravity to help the fetal head apply pressure to the cervix and stimulate endogenous oxytocin release, this response is less effective than recognizing the need for potential pharmacological augmentation. The contractions are described as rarely higher than 20 mm Hg, suggesting a significant need for intervention beyond simple position change to achieve the necessary 50 to 80 mm Hg intensity for progression.