A 76-year-old woman is brought to the physician by her adult daughter after she was found beside a staircase in her house. She has history of alcohol use. Vitals are stable. Laboratory studies show:
Hemoglobin 14 g/dL
Leukocytes 6,000/μL
Platelets 180,000/μL
Urine blood 2+
Urine protein Negative
Urine RBCs 3-4/hpf
Urine WBCs 0-2/hpf
Which of the following is most likely to be seen in this patient?