Useful For?×Suggests clinical disorders or settings where the test may be helpful
Additional proof of alloantibody specificity
Assessment of solid organ transplantation donor compatibility
This test is not useful for the purpose of establishing paternity.
Method Name?×A short description of the method used to perform the test
AL State Available?×Indicates the status of AL State approval and if the test is orderable for AL State clients.
Reporting Name?×Lists a shorter or abbreviated version of the Published Name for a test
Aliases?×Lists additional common names for a test, as an aid in searching
A1R
A1 Antigen Subtype
A1 Antigen
A1 subgroup
Specimen Type?×Describes the specimen type validated for testing
Shipping Instructions
Specimen must arrive within 7 days of collection
Specimen Required?×Defines the optimal specimen required to perform the test and the preferred volume to complete testing.
Container/Tube: Pink top (EDTA)
Specimen Volume: 6 mL
Pediatric Volume: 2 mL blood in 6 mL pink-top (EDTA) tube
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Reject Due To?×Identifies specimen types and conditions that may cause the specimen to be rejected
| Name | Value |
|---|
| Gross hemolysis | OK |
Specimen Stability Information?×Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included
| Specimen Type | Temperature | Time | Special Container |
|---|
| Whole Blood EDTA | Refrigerated (preferred) | 7 Ditë | |
| Ambient | 72 Orë | |
Useful For?×Suggests clinical disorders or settings where the test may be helpful
Additional proof of alloantibody specificity
Assessment of solid organ transplantation donor compatibility
This test is not useful for the purpose of establishing paternity.
Clinical Information?×Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test
The presence or absence of a cellular antigen is an inherited trait. Generally, individuals will not make antibody directed against an antigen present on their own red blood cells.
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.
Reported as Negative or Positive
Interpretation?×Provides information to assist in interpretation of the test results
The A1 antigen type will be resulted as "pos," indicating that the antigen is present, or "neg," indicating that the antigen is absent.
Cautions?×Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances
No significant cautionary statements
Clinical Reference?×Recommendations for in-depth reading of a clinical nature
Cohn CS, Delaney M, Johnson ST, Katz LM, Schwartz J, eds. Technical Manual. 21st ed. AABB; 2023
Method Description?×Describes how the test is performed and provides a method-specific reference
Agglutination of red blood cells with an antiserum represents the presence of the corresponding antigen in the red blood cells.(Cohn CS, Delaney M, Johnson ST, Katz LM, Schwartz J, eds. Technical Manual. 21st ed. AABB; 2023)
PDF Report?×Indicates whether the report includes an additional document with charts, images or other enriched information
Day(s) Performed?×Outlines the days the test is performed. This field reflects the day that the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time before the test is performed. Some tests are listed as continuously performed, which means that assays are performed multiple times during the day.
Monday through Friday, Sunday
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.
Specimen Retention Time?×Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
Performing Laboratory Location?×Indicates the location of the laboratory that performs the test
Mayo Clinic Laboratories - Rochester Main Campus
CLIA Number: 24D0404292
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 has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.
CPT Code Information?×Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Clinic Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.
CPT codes are provided by the performing laboratory.
86905
LOINC® Information Order?×Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and results codes of this test. LOINC values are provided by the performing laboratory.
| Test Id | Test Order Name | Order Value |
|---|
| A1R | A1 antigen subtype | 844-1 |
LOINC® Information Result?×Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and results codes of this test. LOINC values are provided by the performing laboratory.
| Result Id | Test Result Name | Result Value |
|---|
| A1R | A1 antigen subtype | 844-1 |
Setup Files?×Test setup information contains test file definition details to support order and result interfacing between Mayo Clinic Laboratories and your Laboratory Information System.
Sample Reports?×Normal and Abnormal sample reports are provided as references for report appearance.
