Method Name
A short description of the method used to perform the test
Enzyme Immunoassay (FEIA)
NY State Available
Indicates the status of NY State approval and if the test is orderable for NY State clients.
No
Reporting Name
Lists a shorter or abbreviated version of the Published Name for a test
Corn IgG4
Aliases
Lists additional common names for a test, as an aid in searching
Corn IgG4 Food
Corn/Maize IgG4 Food
Maize IgG4 Food
Zea mays IgG4
Specimen Type
Describes the specimen type validated for testing
Serum
Specimen Required
Defines the optimal specimen required to perform the test and the preferred volume to complete testing
Collection Container/Tube:
Preferred: Red Top
Acceptable: Serum gel
Specimen Volume: 0.5 mL
Collection Instructions:
1. Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable.
2. Centrifuge and aliquot 0.5 mL of serum in a plastic vial.
3. Send refrigerate.
Specimen Minimum Volume
Defines the amount of sample necessary to provide a clinically relevant result as determined by the testing laboratory. The minimum volume is sufficient for one attempt at testing.
Reject Due To
Identifies specimen types and conditions that may cause the specimen to be rejected
Specimen Type |
Temperature |
Time |
Special Container |
Serum |
Refrigerated (preferred) |
28 days |
|
|
Frozen |
365 days |
|
|
Ambient |
7 days |
|
Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
Reference ranges have not been established for food-specific IgG4 tests.
Interpretation
Provides information to assist in interpretation of the test results
The clinical utility of food-specific IgG4 tests has not been clearly established. These tests can be used in special clinical situations to select foods for evaluation by diet elimination and challenge in patients who have food-related complaints, and to evaluate food allergic patients prior to food challenges. The presence of food-specific IgG4 has been studied in response to various oral food immunotherapy treatments but cutoffs have not been established.
PDF Report
Indicates whether the report includes an additional document with charts, images or other enriched information
No
Report Available
The interval of time (receipt of sample at Mayo Clinic Laboratories to results available) taking into account standard setup days and weekends. The first day is the time that it typically takes for a result to be available. The last day is the time it might take, accounting for any necessary repeated testing.
4 to 7 days
Eurofins Viracor
Fees
Several factors determine the fee charged to perform a test. Contact your U.S. or International Regional Manager for information about establishing a fee schedule or to learn more about resources to optimize test selection.
- Authorized users can sign in to Test Prices for detailed fee information.
- Clients without access to Test Prices can contact Customer Service 24 hours a day, seven days a week.
- Prospective clients should contact their account representative. For assistance, contact Customer Service.
Test Classification
Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR) product.
This test was developed and its performance characteristics determined by Eurofins Viracor. It has not been cleared or approved by the U.S. Food and Drug Administration.
Test Id |
Test Order Name |
Order LOINC Value
|
FCOR4 |
Corn IgG4 |
56231-4 |
Result Id |
Test Result Name |
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|
FCOR4 |
Corn IgG4 |
56231-4 |