A nurse is preparing to assess the uterine fundus of a client in the immediate postpartum period.
When the nurse locates the fundus, she notes that the uterus feels soft and boggy at midline.
Which of the following nursing interventions would be most appropriate initially?

Choice A rationale

Ectopic pregnancy occurs when a fertilized egg implants outside the uterus, most commonly in the fallopian tube. Symptoms can include unilateral abdominal pain, light to heavy vaginal bleeding, and a positive pregnancy test. An ectopic pregnancy is a serious condition requiring prompt medical attention.

Choice B rationale

Molar pregnancy, also known as gestational trophoblastic disease, is characterized by abnormal growth of trophoblasts, the cells that normally develop into the placenta. It can present with symptoms such as vaginal bleeding (ranging from spotting to heavy bleeding), pelvic pain or pressure, and a uterus that may be larger than expected for the gestational age. The absence of a fetal heartbeat and elevated hCG levels are also characteristic.

Choice A rationale

Pain in the abdomen, shoulder, or back can be associated with pre-term labor or other pregnancy complications and should be assessed. However, respiratory depression, hypotension, and absent tendon reflexes are more indicative of magnesium sulfate toxicity and pose an immediate threat to the client's safety.

Choice B rationale

Magnesium sulfate is a central nervous system depressant used to prevent seizures in pre-eclampsia and tocolysis in pre-term labor. Respiratory depression (respiratory rate less than 12 breaths per minute), hypotension (systolic blood pressure less than 90 mmHg or a significant drop from baseline), and absent deep tendon reflexes are signs of magnesium toxicity and require immediate intervention to prevent serious adverse effects.

Choice C rationale

Severe lower back pain, leg cramps, and sweating can be symptoms of pre-term labor or other musculoskeletal issues during pregnancy. While important to assess and manage, they do not represent the same immediate life-threatening risk as magnesium toxicity.

Choice D rationale

Low potassium or elevated glucose levels, tachycardia, and chest pain are not typical side effects of magnesium sulfate. These findings could indicate other underlying medical conditions that need investigation, but they are not the priority assessment related to magnesium sulfate administration compared to signs of toxicity. Normal potassium range is 3.5-5.0 mEq/L, normal fasting glucose is 70-100 mg/dL.