Serum N-acetyl-β-glucosaminidase (NAG)

Serum N-acetyl-β-glucosaminidase is an acidic hydrolase in lysosomes and is abundant in nephron proximal tubular epithelial cells. In the case of tubular damage, serum N-acetyl-β-glucosaminase increased. Basic Information Specialist classification: Digestive examination classification: biochemical examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Rare. Normal value: Colorimetric method: 15.14-27.94U/L Above normal: In the case of tubular damage, serum N-acetyl-β-glucosaminase increased. Elevation can be seen in acute hepatitis, chronic hepatitis, liver cancer, cirrhosis, gallstones, cholecystitis, alcoholic liver disease, acute myocardial infarction, coronary heart disease, late pregnancy, diabetic nephropathy, nephrotic syndrome, heavy metal poisoning, drug-induced poisoning, burns , hypoxia, blood loss, familial Fanconi syndrome. negative: Positive: Tips: fasting for 12 hours, take fasting venous blood. Nephrotoxic drugs such as streptomycin and gentamicin are stopped before the specimen is drawn. Normal value 1. Enzyme rate method (37 ° C) seronegative; 2. Colorimetric method 15.14 ~ 27.94 U / L. (Note the specific reference value depends on each laboratory.) Clinical significance Elevation can be seen in acute hepatitis, chronic hepatitis, liver cancer, cirrhosis, gallstones, cholecystitis, alcoholic liver disease, acute myocardial infarction, coronary heart disease, late pregnancy, diabetic nephropathy, nephrotic syndrome, heavy metal poisoning, drug-induced poisoning, burns , hypoxia, blood loss, familial Fanconi syndrome. High results may be diseases: liver cancer, acute myocardial infarction, diabetic nephropathy, heavy metal toxic nephropathy 1. Fasting for 12 hours, taking fasting venous blood. 2. Stop the nephrotoxic drugs, such as streptomycin and gentamicin, before the blood is drawn from the specimen. Inspection process A quantitative serum was taken and sent for examination. Not suitable for the crowd Those who do not have a suitable test should not be tested. Adverse reactions and risks Discomfort: There may be pain, swelling, tenderness, and visible subcutaneous ecchymosis at the puncture site.

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