A nurse is teaching a client who is at 20 weeks of gestation about how to manage heartburn.
Which of the following instructions should the nurse include?

Choice A rationale:

Uterine rupture typically presents with intense, constant abdominal pain and signs of shock. However, the absence of visible bleeding in the abdominal cavity makes this choice less likely in this case.

Choice B rationale:

Placental abruption involves the premature separation of the placenta from the uterine wall before delivery. The sudden, severe abdominal pain, moderate vaginal bleeding, persistent uterine contractions, and signs of hypovolemic shock (low blood pressure, rigid abdomen) are indicative of placental abruption. This condition requires immediate medical intervention due to the risk of fetal and maternal compromise.

Choice C rationale:

Placenta previa occurs when the placenta partially or completely covers the cervical opening. It typically presents with painless, bright red vaginal bleeding. The severe abdominal pain described in the scenario is inconsistent with placenta previa.

Choice D rationale:

Amniotic fluid embolus is a rare and life-threatening condition in which amniotic fluid enters the maternal bloodstream, causing an allergic reaction. It can lead to sudden cardiovascular collapse. Although it can cause respiratory distress and hypotension, it does not usually present with severe abdominal pain or uterine contractions.

- A: Incorrect. Decreased blood pressure is not an indication of chlorpromazine effectiveness, but rather a potential adverse effect that should be monitored and reported.

- B: Correct. Decreased hallucinations are an indication of chlorpromazine effectiveness, as this medication is an antipsychotic that blocks dopamine receptors in the brain and reduces psychotic symptoms such as hallucinations, delusions, and paranoia.

- C: Incorrect. Decreased cholesterol is not an indication of chlorpromazine effectiveness, but rather a potential benefit that may occur due to its effect on lipid metabolism.

- D: Incorrect. Decreased esophageal reflux is not an indication of chlorpromazine effectiveness, but rather a potential adverse effect that should be avoided by taking the medication with food or water and avoiding lying down after administration.