A nurse is assessing a pregnant client at 28 weeks gestation with a pre-pregnancy BMI of 35 kg/m². Which assessment finding would be most concerning and require immediate follow-up?

This question requires you to apply clinical judgment to identify the most urgent finding in a pregnant client with a high pre-pregnancy BMI. The client is at 28 weeks gestation with a pre-pregnancy BMI of 35 kg/m², placing her in a high-risk category for hypertensive disorders of pregnancy (HDP). The core task is to differentiate between expected physiological changes of pregnancy, common complications in obesity, and findings that signal a rapidly deteriorating condition requiring immediate intervention.

The correct answer is option 3. The combination of proteinuria of 2+ on urine dipstick and a blood pressure of 148/96 mmHg meets the diagnostic threshold for preeclampsia with severe features. In a client with a BMI of 35, the baseline risk for HDP is already elevated. The scoping review by Hermayanti et al. (2026) emphasizes that hypertension during pregnancy remains a leading cause of maternal death, often due to delays in recognizing warning signs ^[3]. A blood pressure at this level, combined with significant proteinuria, indicates systemic endothelial dysfunction and glomerular endotheliosis, which can rapidly progress to eclampsia, HELLP syndrome, or placental abruption. This finding demands immediate provider notification, administration of antihypertensives, seizure precautions, and likely magnesium sulfate loading.

Option 1 presents a blood pressure of 128/82 mmHg with trace edema. While trace edema can be a subtle cue in preeclampsia, it is also a very common finding in normal pregnancy due to increased plasma volume and venous compression. The blood pressure, though slightly elevated from an ideal baseline, does not meet the threshold of 140/90 mmHg for gestational hypertension. This scenario warrants close monitoring but is not the most immediately concerning finding.

Option 2 describes a fasting blood glucose of 95 mg/dL with glycosuria. A fasting glucose of 92-125 mg/dL is diagnostic for gestational diabetes mellitus (GDM) in many guidelines. Given the client’s obesity, the risk for GDM is high, and this finding requires follow-up for dietary management and glucose monitoring. However, GDM is a condition managed over the course of weeks, whereas severe preeclampsia poses an imminent threat to maternal and fetal life. The acuity of option 3 takes priority.

Option 4 notes a weight gain of 12 pounds since conception. For a client with a pre-pregnancy BMI in the obese category, the Institute of Medicine recommends a total weight gain of 11-20 pounds over the entire pregnancy. A gain of 12 pounds by 28 weeks suggests a trajectory that may exceed recommendations, which is a concern for macrosomia and cesarean delivery. Mild nausea is a common, non-specific symptom. This finding requires nutritional counseling, as highlighted by the review on nutritional management in preeclampsia, which stresses the importance of dietary interventions to help maintain normal blood pressure ^[3], but it does not represent an acute emergency.

The systematic review and meta-analysis by Nigate et al. (2026) underscores the critical importance of awareness and early recognition of pregnancy-induced hypertension to achieve positive health outcomes . In clinical practice, a structured nursing intervention for women diagnosed with HDP focuses on precise risk identification and immediate action to reduce complications . Your role as the nurse is to triage based on the potential for rapid clinical deterioration, and severe preeclampsia always takes precedence over chronic metabolic concerns when they present concurrently.