Amylase Isoenzymes with Reflex to Macroamylase

Amylase Isoenzymes with Reflex to Macroamylase

Test Code

36187
82150 (x2)
36187
82150 (x2)
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Amylase Isoenzymes with Reflex to Macroamylase - 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.

Test Resources

None found for this test
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Test Details

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).

Methodology

Enzymatic

Assay Category

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.

Reference Range(s)

Amylase 21-101 U/L
Pancreatic Isoenzyme 16-46 U/L
Salivary Isoenzymes 4-61 U/L

LOINC® Codes, Performing Laboratory

Service Area must be determined
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).

Methodology

Enzymatic
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.

Reference Range(s)

Amylase 21-101 U/L
Pancreatic Isoenzyme 16-46 U/L
Salivary Isoenzymes 4-61 U/L
Service Area must be determined

Preferred Specimen(s)

2 mL serum

Minimum Volume

1 mL

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

  • Room temperature: Unacceptable
  • Refrigerated: 7 days
  • Frozen: 21 days

Reject Criteria

Gross hemolysis

Setup Schedule

Service Area must be determined
2 mL serum
1 mL
Transport tube

Refrigerated (cold packs)

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 21 days
Gross hemolysis
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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