| 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 with Reflex to Macroamylase
Test Code36187
CPT Codes
82150 (x2)
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).
Preferred Specimen
2 mL serum
Minimum Volume
1 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 21 days
Refrigerated: 7 days
Frozen: 21 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Enzymatic
Setup Schedule
Set up: Sun-Fri; Report available: Next day
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 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.
Performing Laboratory
| Quest Diagnostics Nichols Institute |
| 14225 Newbrook Drive |
| Chantilly, VA 20153 |
