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Amylase Isoenzymes
MessageThis test is currently only available in BHS CPRS. If you are a Bedford provider and wish to see this test offered in Bedford CPRS- please contact the Bedford Laboratory.
Testing performed at Quest Diagnostics.
Testing performed at Quest Diagnostics.
Test Code
AMYLASE FRACTIONATION (Q)
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: lithium heparin (green-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
Set up: Tues-Sat; Report available: 1-3 days
Limitations
Oxalate, citrate, and lipemic sera can decrease results.
Reference Range
| Amylase | 21-101 U/L |
| Pancreatic Isoenzyme | 16-46 U/L |
| Salivary Isoenzymes | 4-61 U/L |
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.
Last Updated: September 6, 2014
