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HelpTest Code SPAGR Special Red Cell Antigen Typing, Whole Blood
Shipping Instructions
Specimen must arrive within 7 days of draw.
Necessary Information
The desired antigens to be tested must be included or testing will not proceed.
Specimen Required
Container/Tube:
Preferred: Pink top (EDTA)
Acceptable: Lavender top (EDTA)
Specimen Volume: 6 mL
Pediatric Volume: 3 mL Blood in pink-top or lavender-top (EDTA) tube
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| STTX32 | Red Cell Antigen Typing | No | No |
| DATR | Direct Antiglobulin Tst (Poly) | No | No |
Testing Algorithm
List the specific antigens desired on the order.
Note: Antigen typings that require the use of an anti-human globulin reagent (eg, Fya, Fyb, s) will include the addition of a direct antiglobulin test, which will be performed at an additional charge.
Examples of antigens routinely tested by the lab are listed below.
-Fya/Fyb
-C
-c (little c)
-E
-e (little e)
-K
-Fya
-Fyb
-Jka
-Jkb
-M
-N
-S
-s (little s)
-Complete phenotype (13 antigens listed above)
-McLeod (K system antigens)
-Other
Method Name
Hemagglutination
Specimen Type
Whole Blood EDTASpecimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood EDTA | Refrigerated (preferred) | 7 days |
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | OK |
Clinical Information
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
Reported as positive or negative
Day(s) Performed
Monday through Friday, Sunday
Report Available
1 to 5 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86905-Each red cell antigen typing (if more than one ordered)