Are Levels Of ALT 95 And AST 108 Be A Matter Of Concern In A 5 Year Old?

My son is 5 years old. He was born with gastroschisis, do to many surgeries he now has short bowel syndrome. He was TPN dependent as an infant in the NICU. Therefor he has elevated liver enzymes from time to time. He has also gotten 6 blood transfusions through out his life. When he was 1 1/2 we faced a possible small bowel and liver transplant and a miracle happened that we didn t need it. My question is he had labs drawn on march 3rd and I got the results today his RBC is 3.98, Lymphocytes is 53.3, Eosinophils is 3.76, Glucose is 56, ALT is 95 and AST is 108 also his vitamin d is 21. I called the doctor to tell him i was concerned and his nurse told me they weren t and that they probably were left sitting in the lab which messed up the levels. I called the lab and they assured me his blood work was processed promptly. Should I be concerned? What does all this mean?