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Amylase Isoenzymes
Test Code845
CPT Codes
82150 (x2)
Includes
Amylase
Pancreatic Isoenzyme
Salivary Isoenzymes (calculated)
Pancreatic Isoenzyme
Salivary Isoenzymes (calculated)
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube or EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 21 days
Refrigerated: 14 days
Frozen: 21 days
Methodology
Enzymatic
Setup Schedule
Night
Report Available
Reports in 3 days.
Limitations
Oxalate, citrate, and lipemic sera can decrease results.
Clinical Significance
Amylase measurements are used primarily for the diagnosis and treatment of pancreatitis. The elevation of a-amylase activity in serum, however, is not specifically indicative of a pancreatic disorder since the enzyme is also produced by the salivary glands and other organs.
Clinical evaluations of patients with acute pancreatitis have shown that pancreatic isoamylase has a greater sensitivity than total amylase.
Clinical evaluations of patients with acute pancreatitis have shown that pancreatic isoamylase has a greater sensitivity than total amylase.
