AST is characteristically elevated in diseases of which organ?

Master the BOC Clinical Chemistry Test. Prepare with interactive flashcards and multiple choice questions with detailed explanations. Boost your confidence and ace the exam!

Multiple Choice

AST is characteristically elevated in diseases of which organ?

Explanation:
AST is an enzyme concentrated in liver cells, and when hepatocytes are damaged, AST leaks into the bloodstream, causing the serum level to rise. This makes AST a hallmark of liver injury, so diseases of the liver characteristically elevate AST. While AST is also present in heart and muscle, the typical association in clinical testing is with liver damage, and ALT is generally more liver-specific, helping to refine the assessment when both enzymes are measured.

AST is an enzyme concentrated in liver cells, and when hepatocytes are damaged, AST leaks into the bloodstream, causing the serum level to rise. This makes AST a hallmark of liver injury, so diseases of the liver characteristically elevate AST. While AST is also present in heart and muscle, the typical association in clinical testing is with liver damage, and ALT is generally more liver-specific, helping to refine the assessment when both enzymes are measured.

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