HomeNursing questions Normal range of ASO test.. Up to 200 Iu/ml Normal range of ASO test: a. Up to 200 Iu/ml.*** b. Up to 100 Iu/ml. c. Less than 50 mg/dl d. 70 – 110 mg/dl. Facebook Twitter Share:Normal range of ASO test.. Up to 200 Iu/ml Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email