Antigen Phenotype M

Clinical information

Diagnostic Utility:

This test is used to determine whether there is presence or absence of the M antigen on red blood cells. 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-M specificity, the person who has developed the antibody is M negative.

Method:                                            

Hemagglutination.

Reference Range

The possible results are: Negative, Positive.
In case of doubtful results, for example due to recent transfusions, the same will be reported and the need for complementary studies to unequivocally categorize the M phenotype will be 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
Rejection reason: Highly hemolyzed sample

Administrative information

BST Code: 0550
Test Description: Antigen M phenotype
Synonyms: Ag M
Section: Immunohematology
BST Rate: Check the updated rates by clicking here.

Profiles:

Test 0550 Antigen M 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