A nurse is reviewing the medical record of a client who is at 37 weeks of gestation and has HELLP syndrome. Which of the following laboratory findings should the nurse expect?

A. BUN 20 mg/dL: This is not specific to HELLP syndrome. A BUN level of 20 mg/dL is within the normal range and does not indicate the presence of HELLP syndrome, which is associated with liver dysfunction and low platelet count. B. Platelet count 77,000/mm3: This is correct. HELLP syndrome (Hemolysis, Elevated Liver enzymes, and Low Platelets) is characterized by a low platelet count, often less than 100,000/mm3, which is a critical indicator of this condition. C. Hemoglobin 12 g/dL: This is a normal hemoglobin level and is not typically associated with HELLP syndrome, where hemolysis (destruction of red blood cells) can cause anemia, which would lower hemoglobin levels. D. WBC count 18,000/mm3: While an elevated WBC count can indicate infection or inflammation, it is not specifically associated with HELLP syndrome. The hallmark features of HELLP syndrome are low platelets and liver enzyme elevation, not elevated WBC.