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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
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 collected in a serum separator tube (SST)
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube or EDTA (lavender-top) tube
Transport Container
Transport 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.
