When
total bilirubin is mildly elevated and SGPT/SGOT,
Alkaline phosphatase, USG
liver are normal; it is usually indirect fraction of bilirubin which is high, which is commonly seen with Gilbert's Syndrome, which is a very benign condition.
Next Steps
1) Get full
LFT including direct and indirect bilirubin, USG abdomen
2) If indirect is high and direct is normal; get HB, Reticulocyte count, LDH, and peripheral smear done. If these are normal; it's Gilbert's Syndrome