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J Postgrad Med ; 2008 Jan-Mar; 54(1): 4-6
Article in English | IMSEAR | ID: sea-115852

ABSTRACT

BACKGROUND: Low ionic strength solution (LISS) is used to increase the rate of association of antibody to the corresponding antigen during antibody detection tests. A number of LISSs are available on the market. AIMS: The efficiency of two commercial low ionic diluents, DiaMed ID-CellStab and Inverclyde LISS were assessed using the DiaMed-ID LISS Coombs microtube column system and an incubation time varying from 15 to 35 min. MATERIALS AND METHODS: One-hundred samples containing five Rh antibodies (anti-D, anti-C, anti-E, anti-c and anti-e) were tested against commercial red cells using the two low ionic diluents after 15, 25 and 35 min. RESULTS: The Inverclyde LISS detected 91, 95 and 96% of the Rh antibodies compared to 78, 79 and 83% for ID-CellStab after 15, 25 and 35 min incubation time, respectively, for both methods. CONCLUSIONS: The Inverclyde LISS is a more suitable and efficient diluent than ID-CellStab for the detection of Rh antibodies. The sensitivity of Rh antibody detection increased for the both methods as the incubation time increased.


Subject(s)
Coombs Test/methods , Humans , Isoantibodies/immunology , Osmolar Concentration , Sensitivity and Specificity , Solutions/standards , Time Factors
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