Phenotype antigen N

Clinical information

Diagnostic Utility:

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

Method:                                             

Hemagglutination.

Reference Values

Possible results are: Negative, Positive.
In cases where the result is doubtful, for example, due to recent transfusions, it is reported as such and additional studies are indicated to unequivocally classify the N phenotype.

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: 0551
Test Description: Antigen N phenotype
Synonyms: Ag N
Section: Immunohematology
BST Rate: Check updated rates by clicking here.

Profiles:

Test 0551 Antigen N phenotype is carried out within the following profiles:

References

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