A nurse is assessing a pregnant client diagnosed with HELLP syndrome. Which of the following findings is most concerning?

A. Blood pressure of 140/90 mmHg: While elevated, this blood pressure reading is at the threshold of hypertension and is common in HELLP syndrome. It is not the most alarming finding unless it continues to rise or is accompanied by signs of end-organ damage. B. Platelets 250,000/mm³: This is within the normal range and does not reflect thrombocytopenia, which is a hallmark of HELLP syndrome. A concerning platelet count would be below 100,000/mm³, suggesting a risk for bleeding complications. C. Right upper quadrant pain: This symptom may indicate liver involvement, such as hepatic swelling or rupture, and is a serious sign in HELLP syndrome. It can signal worsening disease and the need for immediate evaluation and possible intervention. D. Fetus expected weight for gestation: A fetus growing appropriately is a reassuring sign in pregnancy. HELLP syndrome can lead to fetal growth restriction, but expected weight indicates adequate placental function at the moment and is not an urgent concern.