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
- N/A
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 = 30 days
Limitations
Oxalate, citrate, and lipemic sera can decrease results.
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
Polyethylene Glycol Precipitation
Spectrophotometry
Spectrophotometry
FDA Status
FDA Approved
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
Sunday - Friday; Report available: 1 day
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 = 30 days
Limitations
Oxalate, citrate, and lipemic sera can decrease results.
Other Acceptable Specimens
N/A
Unacceptable Specimens
Gross hemolysis
Result Information
Methodology
Polyethylene Glycol Precipitation
Spectrophotometry
Spectrophotometry
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
Sunday - Friday; Report available: 1 day