Q. A 32-year-old female is admitted to the hospital with complaints of severe abdominal pain, headache, and nausea. She is 33 weeks pregnant and has a history of hypertension. The patient states that she has been experiencing abdominal pain for the past 24 hours, which has been gradually worsening. She also complains of a headache and nausea. She denies any vaginal bleeding, leakage of fluid, or contractions. On physical examination, the patient appears anxious and uncomfortable. Her blood pressure is 160/100 mm Hg, heart rate 100/min, respiratory rate 20/min, and her oxygen saturation is 98 percent on room air. An abdominal examination reveals tenderness and guarding in the right upper quadrant with no palpable contractions. The fetal heart rate is within normal limits. Laboratory investigations show evidence of thrombocytopenia, elevated liver enzymes, and elevated lactate dehydrogenase. You order an ultrasound, which reveals a subcapsular hematoma in the right hepatic lobe (see image). The patient is managed with intravenous magnesium sulfate, antihypertensive medications, and corticosteroids to accelerate fetal lung maturation. You closely monitor her for signs of worsening disease and fetal distress. Considering the most likely diagnosis, which of the following diagnostic results does NOT support the presence of hemolysis?