Kell Antigen Typing - Patient
Also known as: K AG
Use
The Kell antigen typing test is utilized to determine if the K (KEL1) antigen is expressed on a patient's red blood cells. This test is significant in assessing the risk of hemolytic disease of the fetus and newborn (HDFN) caused by maternal antibodies against the K antigen. Understanding the K antigen expression is crucial for transfusion compatibility and prenatal assessments.
Special Instructions
Not provided.
Limitations
The Kell antigen typing test will not determine the heterozygous vs homozygous status of the patient for the K antigen; additional testing such as Cellano Antigen Typing may be required. This assay will not detect other antigens or antibodies beyond Kell. False positives or negatives may occur in cases of recent transfusions or hemolytic episodes.
New York Approved
Methodology
Other
Biomarkers
Kell (KEL1) Antigen
Other
LOINC Codes
- 1096-7 - K Ag RBC Ql
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Whole Blood
Volume
7 mL
Minimum Volume
0.5 mL
Container
Lavender (K2EDTA) or Pink (K2EDTA)
Causes for Rejection
Separator tubes
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unacceptable |
| Refrigerated | 1 week |
| Frozen | Unacceptable |
Other tests from different labs that may be relevant