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The liver is an important body organ that regulates various biological functions. Any damage or injury in the liver can lead to disturbed body vitals. Liver disorders, injury, and damage commonly occur in our country. The liver blood test is a common diagnostic test to check the functioning of the liver. SGPT is a vital parameter whose levels decide whether or not your liver is functioning properly. Therefore, this article lets us know more about this parameter. This article deals with SGPT liver blood tests, its normal range, high ALT levels, causes, and symptoms.