A nurse is teaching the parents of a newborn about the critical congenital heart disease screening.
Which of the following statements should the nurse include in the teaching?

Choice A rationale

Administering oxygen via nasal cannula at 2 L/min might marginally increase fetal oxygenation, but it does not address the primary issue of hypotension causing decreased placental perfusion. The fundamental problem is reduced blood flow to the placenta, necessitating interventions that increase maternal circulating volume and blood pressure to improve perfusion.

Choice B rationale

Administering a lactated Ringer's 500 mL bolus directly addresses hypotension by expanding the maternal intravascular volume. This increased circulating volume raises blood pressure, thereby improving placental perfusion and oxygen delivery to the fetus. Lactated Ringer's is an isotonic solution, effective for rapid volume expansion.

Choice C rationale

Placing the client in a knee-chest position is typically used to alleviate cord compression or prolapse by shifting the fetus, not for treating hypotension. This position can actually worsen hypotension by trapping blood in the lower extremities and reducing venous return to the heart, further compromising placental blood flow.

Choice D rationale

Monitoring the client's blood pressure every 30 minutes is a crucial assessment but is not an immediate intervention for acute hypotension with decreased placental perfusion. While ongoing monitoring is essential, immediate actions are required to correct the underlying cause of hypotension and restore adequate blood flow to the placenta.

The client is at risk for developing HELLP syndrome as evidenced by Liver enzymes.

Rationale for correct answers:
HELLP syndrome (Hemolysis, Elevated Liver enzymes, Low Platelets) is a severe form of preeclampsia often presenting in the third trimester. This client has thrombocytopenia (platelets 100,000/mm³; normal 150,000–400,000/mm³), elevated blood urea nitrogen (25 mg/dL; normal 10–20 mg/dL), borderline elevated creatinine (1.1 mg/dL; normal 0.5–1.0 mg/dL), and elevated uric acid (9.8 mg/dL; normal 2.7–7.3 mg/dL), which suggests possible renal impairment and oxidative stress typical in HELLP. Mild epigastric discomfort also aligns with liver involvement. Although liver enzymes are not listed in the labs here, the question implies liver enzyme elevation as a hallmark finding to confirm HELLP, which is essential to monitor. Hemolysis would typically manifest as anemia, but hemoglobin and hematocrit are near normal. Prompt recognition and further testing of liver enzymes (AST, ALT) are critical for diagnosis and management.

Rationale for incorrect Response 1 options:
Chorioamnionitis is an infection of the amniotic sac, usually presenting with fever, uterine tenderness, and elevated WBC, which are not present here. Gestational diabetes is characterized by hyperglycemia, but the client’s blood glucose is only mildly elevated and not diagnostic. Pyelonephritis involves urinary tract infection with systemic symptoms like fever and flank pain, absent in this case.

Rationale for incorrect Response 2 options:
Amniotic membrane status is unrelated here, as there is no rupture or infection evidence. Ketonuria reflects starvation or diabetes, which is not indicated. Blood glucose is only mildly elevated and insufficient to diagnose gestational diabetes or explain current symptoms.

Take home points:

• HELLP syndrome involves low platelets, elevated liver enzymes, and hemolysis, often with epigastric pain.
• Early lab monitoring including liver enzymes is vital for timely diagnosis.
• Elevated BUN, creatinine, and uric acid can signal renal impairment in HELLP.
• Differentiate HELLP from infections or gestational diabetes by clinical presentation and specific labs.