Amylase Isoenzymes with Reflex to Macroamylase
Order Code: AMYISO
Test Summary
Amylase is produced primarily in the pancreas and salivary glands. Isoenzymes may be used to determine the source of an elevated amylase concentration. Macroamylase is a laboratory and not a clinical entity. Amylase can complex with immunoglobulins or other high molecular weight proteins and serum amylase will appear falsely elevated. No clinical symptoms are associated with macroamylasemia.
Aliases
- Salivary Amylase
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL serum
Minimum Volume
1 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Room temperature = Unacceptable
- Refrigerated = 7 days
- Frozen = 21 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis
Order Code
AMYISO
EPIC (Premier) Code
LAB3843
Includes
Amylase, Pancreatic Isoenzyme, Salivary Isoenzymes (calculated)
If Amylase Isoenzymes are >115 U/L, then Macroamylase will be performed at an additional charge (CPT code(s): 82150).
If Amylase Isoenzymes are >115 U/L, then Macroamylase will be performed at an additional charge (CPT code(s): 82150).
CPT Code
- 82150 (x2)
Billing Code
- 670553
CPT Statement
Methodology
Enzymatic
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Department
Reference Testing
Reference Range
| Amylase | 21-101 U/L |
| Pancreatic Isoenzyme | 16-46 U/L |
| Salivary Isoenzymes | 4-61 U/L |
Setup Schedule / Expected Turnaround Time
Wednesday, Saturday; Report available: 2 - 7 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
2 mL serum
Minimum Volume
1 mL
Instructions
N/A
Patient Preparation
N/A
Storage
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Room temperature = Unacceptable
- Refrigerated = 7 days
- Frozen = 21 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis
Result Information
Methodology
Enzymatic
Testing Laboratory
N/A
Reference Range
| Amylase | 21-101 U/L |
| Pancreatic Isoenzyme | 16-46 U/L |
| Salivary Isoenzymes | 4-61 U/L |
Setup Schedule / Expected Turnaround Time
Wednesday, Saturday; Report available: 2 - 7 days