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Case Study 3: Relatives bring a 78 year old woman to the emergency room. The family reports that she is confused and disoriented for several hours. Patient temperature and other basic vital signs appear normal. No stiffness of neck seen. Spinal column pressure is within normal range and three tubes of CSF showing an even distribution of blood are sent to the lab. Test results are as follows: Glucose 75mg/dL Protein 165mg/dL Gram Stain No organisms seen. WBC Count 713/:L RBC Count 2600/:L Differential Segs 70% Lymphs 25% Monos 4% Eos 1% Basos Others Numerous erythrophages seen. What is the most probable cause for the results in this patient? Give at least two (2) reasons for your conclusion. (5pts)