Bilirubin lil more in direct bilirubin.

My friend had a recent UTI infection n a slight enlargement of prostrate gland,doctor gave him meds fr three weeks.He went to check for UTI as he felt,his urine output was not normal.He had meds for three weeks now and urine output improved..In past test his creatine was 1.26..but after three weeks he did again whole body functioning test...n his glomerular fitration rate is 85(normal range is 90)..a slight reduction is noticed,but then his creatinine fell on place and is normal(1.1).His worry is about bilirubin direct which shows 1.7.Indirect is in normal range.Shud he worry? His hba1c level shows 5.5...n making him into slight prediabetic levels.If anyone can advise what to do further i would appreciate. No stomach pain,no swolen legs,no urine urgency or difficulty in passing urine or motion.No other major or minor symptoms.His  cholestrol and all other things are normal.Please advise the needful.