Enzyme markers are tests for specific enzyme activity in the body. Diseases or defects passed down through families can cause enzymes to stop working or to be less active.
Test results are reported as a percentage of normal enzyme activity.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.