Antigen Phenotype Jka

Clinical information

Diagnostic Utility:

This test is used to determine the presence or absence of the Jk^a antigen on red blood cells. It is part of the red cell phenotype study. It is also useful in the study of the specificity of irregular antibodies to demonstrate that in the presence of an anti-Jk^a specificity, the person who has developed the antibody is Jk^a negative.

Method:                                             

Hemagglutination.

Reference Values

The possible results are: Negative, Positive.
In cases where the result is doubtful, for example due to recent transfusions, this is reported and the need for complementary studies to unequivocally determine the Jk^a phenotype is indicated.

Diagnostic Algorithm:

Not applicable.

Turnaround 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: 0530
Test Description: Jk^a antigen phenotype
Synonyms: Ag Jk^a
Section: Immunohematology
BST Rate: Check the updated rates here.

Profiles:

Test 0530 Jk^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