Can a muscle injury be related to high AST level? My son as a gluten intolerance (coeliaque... I am french so excuse my poor english)and in his last blood test he had ast level at 42 and alt level at 45 but when he took the blood test he just had a hand injury (1 1/2 day before and his hand was swollen and purple-green)can that be it or we should investigate more? I thank you in advance.