Antigen Phenotype S

Clinical information

Diagnostic Utility:

This test is used to determine whether the S antigen is present on red blood cells. It is part of the study of the erythrocyte phenotype. It is also useful in the study of the specificity of irregular antibodies to demonstrate that in the presence of an anti-S specificity, the person who developed the antibody is S negative.

Method:                                             

Hemagglutination.

Reference Values

Possible results are: Negative, Positive.
In case of a doubtful result, for example due to recent transfusions, this is reported and the need for complementary studies to unequivocally characterize the S 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: 0552
Test Description: Antigen S phenotype
Synonyms: Ag S
Section: Immunohematology
BST Rate: Check the updated rates by clicking here.

Profiles:

Test 0552 Antigen S 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