Laboratory Medicine and Quality Assurance

Table. 2.

Proficiency testing results for anti-D antibody titration (BBS2-21-02)

Technique No. Acceptable (%) Titer

0 1 2 4 8 16 32 64 128 256
Tube-IS 3 NA 1 1 0 1 0 0 0 0 0 0
Tube-RT 3 NA 3 0 0 0 0 0 0 0 0 0
Tube-AHG 22 90.9 0 0 0 1 4 13 3 1 0 0
CAT-AHG 24 95.8 0 0 0 0 0 0 6 14 3 1
CAT-AHG+DTT 2 NA 0 0 0 0 0 0 2 0 0 0
Total 54 NA 4 1 0 2 4 13 11 15 3 1

Acceptable results are indicated in bold

Abbreviations: IS, immediate spin; NA, not applicable; RT, room temperature incubation; AHG, anti-human globulin; DTT, dithiothreitol; CAT, column agglutination technology

Lab Med Qual Assur 2022;44:99~104 https://doi.org/10.15263/jlmqa.2022.44.2.99
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