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
NY State Available
Indicates the status of NY State approval and if the test is orderable for NY State clients.
Yes
Reporting Name
Lists a shorter or abbreviated version of the Published Name for a test
A1 antigen subtype
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
Whole Blood EDTA
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.
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 |
Whole Blood EDTA |
Refrigerated (preferred) |
7 days |
|
|
Ambient |
72 hours |
|
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.
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
Fung MK, Eder AF, Spitalnik SL, Westhoff CM: Technical Manual. 19th ed. AABB; 2017
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.( MK, Eder AF, Spitalnik SL, Westhoff CM: Technical Manual. 19th ed. AABB; 2017)
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.
1 to 5 days
Specimen Retention Time
Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
14 days
Rochester
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.
Test Id |
Test Order Name |
Order LOINC Value
|
A1R |
A1 antigen subtype |
844-1 |
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.
|
A1R |
A1 antigen subtype |
844-1 |