A nurse is providing education to a pregnant client newly diagnosed with Gestational Diabetes Mellitus regarding potential fetal complications. Which of the following complications should the nurse include? Select all that apply

Gestational diabetes mellitus (GDM) is a glucose intolerance first recognized during pregnancy, typically after 24 weeks gestation due to placental hormones, insulin resistance, maternal hyperglycemia, and beta-cell dysfunction. GDM increases maternal risk for preeclampsia, operative delivery, and future metabolic disease. Poor glycemic control leads to endothelial injury, exaggerated inflammatory response, and vascular compromise. Long-term risks include progression to type 2 diabetes mellitus (T2DM), especially if fasting glucose exceeds 95 mg/dL or postpartum glucose remains elevated.

Rationale for correct answers

1. Preeclampsia is more common in GDM due to endothelial dysfunction and vascular inflammation. Hyperglycemia promotes oxidative stress and impairs nitric oxide-mediated vasodilation. This leads to hypertension, proteinuria, and organ ischemia. Risk increases with poor glycemic control and obesity.

2. Increased risk of cesarean delivery results from macrosomia and labor dystocia. Excess fetal growth due to maternal hyperglycemia leads to shoulder dystocia and failed labor progression. Cesarean rates are higher in GDM pregnancies, especially when fetal weight exceeds 4,000 g.

4. Type 2 diabetes risk postpartum is elevated due to persistent insulin resistance and beta-cell dysfunction. Up to 50% of women with GDM develop T2DM within 10 years. Risk increases with obesity, family history, and elevated postpartum glucose. Annual screening is recommended.

Rationale for incorrect answers

3. Hypoglycemia is not a typical maternal complication of GDM. It occurs in type 1 diabetes due to insulin overdose or missed meals. In GDM, maternal glucose levels are elevated, and insulin therapy is titrated to avoid hypoglycemia. It is rare unless overtreatment occurs.

5. Chronic renal failure is not directly caused by GDM. It results from long-standing hypertension, diabetic nephropathy, or glomerular disease. GDM is transient and typically resolves postpartum. Renal failure may occur in preexisting diabetes but is not a complication of gestational diabetes alone.

Take home points

• GDM increases risk for preeclampsia due to endothelial dysfunction.
• Cesarean delivery is more likely due to macrosomia and labor complications.
• Women with GDM have high lifetime risk for type 2 diabetes.
• Hypoglycemia and renal failure are not typical maternal complications of GDM.

Preeclampsia is a multisystem disorder of pregnancy characterized by hypertension, proteinuria, endothelial dysfunction, and organ ischemia. It typically occurs after 20 weeks gestation and may progress rapidly. Severe features include systolic blood pressure ≥160 mmHg, diastolic ≥110 mmHg, elevated liver enzymes, thrombocytopenia <100,000/mm³, and persistent epigastric or right upper quadrant pain due to hepatic involvement.

Rationale for correct answer

2. Epigastric pain in a patient with gestational diabetes mellitus (GDM) raises concern for hepatic capsular distension due to periportal necrosis, a hallmark of severe preeclampsia. This symptom reflects liver involvement and may precede HELLP syndrome. Immediate reporting is essential to prevent progression to eclampsia or placental abruption.

Rationale for incorrect answers

1. Increased appetite is not a feature of preeclampsia. It may occur in GDM due to fluctuating glucose levels or insulin adjustments but does not indicate organ dysfunction. It lacks correlation with vascular compromise or hepatic involvement.

3. Mild fatigue is nonspecific and common in pregnancy due to increased metabolic demand and hormonal shifts. It does not reflect end-organ damage or signal an acute complication. It lacks diagnostic specificity for preeclampsia.

4. Frequent urination is typical in pregnancy due to uterine pressure on the bladder and increased glomerular filtration rate. It is not associated with preeclampsia unless accompanied by oliguria or proteinuria. It does not indicate systemic compromise.

Take home points

• Epigastric pain in pregnancy may signal hepatic involvement in preeclampsia.
• GDM increases risk for preeclampsia due to vascular and metabolic stress.
• Fatigue and urinary frequency are common but nonspecific pregnancy symptoms.
• HELLP syndrome may present with epigastric pain before lab abnormalities.