Histamine Release (Chronic Urticaria)

Test Code

16838

CPT Code(s)

86343

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

Test Code

16838

CPT Code(s)

86343

CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.

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 may be available in your area for purchase through Quest Mobile.

Clinical Significance

Histamine Release (Chronic Urticaria) - Chronic Urticaria (CU) is a common skin disorder affecting 1 to 6% of the general population. It is characterized by repeated occurrence of short-lived cutaneous wheals accompanied by redness and itching. Autoimmune urticaria is defined by the presence of a functional IgG antibody to high-affinity IgE receptor (Fc epsilon RI alpha) or IgE. These antibodies trigger mast cell and basophil degranulation by the engagement of Fc epsilon receptor. Functional IgG antibody to the receptor has been identified in approximately 30-40% of patients with CU, and anti IgE antibody has been identified in another 5%-10%.

Test Resources

None found for this test
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Test Details

Patient Preparation

Patients taking calcineurin inhibitors should stop their medication for 72 hours prior to draw

Methodology

Cell Culture (CC) • Immunoassay (IA)

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)

<16 %

Alternative Name(s)

FC Epsilon Receptor Antibody,Anti-IgE Receptor,Chronic Urticaria,CU (Chronic Urticaria),FCER1, Chronic Urticaria

LOINC® Codes, Performing Laboratory

Service Area must be determined

Patient Preparation

Patients taking calcineurin inhibitors should stop their medication for 72 hours prior to draw

Methodology

Cell Culture (CC) • Immunoassay (IA)

Assay Category

Reference Range(s)

<16 %

Alternative Name(s)

FC Epsilon Receptor Antibody,Anti-IgE Receptor,Chronic Urticaria,CU (Chronic Urticaria),FCER1, Chronic Urticaria

LOINC® Codes, Performing Laboratory

Service Area must be determined

Preferred Specimen(s)

1.5 mL serum collected in a red-top tube (no gel)

Minimum Volume

1 mL

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Icteric • Specimen other than serum • Serum separator tube (SST)

Setup Schedule

Service Area must be determined

Preferred Specimen(s)

1.5 mL serum collected in a red-top tube (no gel)

Minimum Volume

1 mL

Transport Container

Transport tube

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Icteric • Specimen other than serum • Serum separator tube (SST)

Setup Schedule

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 may be available in your area for purchase 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.

The tests listed by specialty and category are a select group of tests offered. For a complete list of Quest Diagnostics tests, please adjust the filter options chosen, or refer to our Directory of Services.