Antigen phenotype Lea

Clinical information

Diagnostic Utility:

This test is used to determine whether the Le^a antigen is present on red blood cells or not. It is part of the erythrocyte phenotyping study. It is also useful in the context of studying the specificity of irregular antibodies to demonstrate that in the presence of an anti-Le^a specificity, the person who developed the antibody is Le^a negative.

Method:                                            

Hemagglutination.

Reference Values

Possible results are: Negative, Positive.

Diagnostic Algorithm:

Not applicable.

Response Time:

1 day.

Specimen information

Sample: Whole blood
Tube: EDTA K3 10 ml tube
Minimum volume: 6 ml
Stability:

• At room temperature: 2 days
• In refrigeration: 2 days

Transport instructions: Preferably at room temperature
Reason for rejection: Highly hemolyzed sample

Administrative information

BST Code: 0540
Test Description: Le^a antigen phenotype
Synonyms: Ag Le^a
Section: Immunohematology
BST Rate: Check the updated rates here.

Profiles:

Test 0540 Le^a antigen phenotype is performed within the following profiles:

References

AABB Technical Manual. 19th edition. Editat per MK Fung, AF Eder, SL Spitalnik, CM Westhoff: AABB 2017