English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Background: Rh D antigen is the next most important after ABO antigens in the field of transfusion medicine. Weak D refers to reduced expression of D antigen on the red blood cell that requires an extended testing with indirect antiglobulin test (IAT) to get detected. Clinical importance of weak D arises when labelling the donor and patient, as the donor is labelled as D positive, patient as D negative. Methods: In our center all blood donor and patient samples are tested for ABO and Rh D by conventional tube technique using two anti-D reagents; anti-D immunoglobulin M (IgM) monoclonal and a blend of anti-D IgM and immunoglobulin G (IgG). The blood samples which were negative for agglutination by immediate spin method were further tested for weak-D using IgG anti-D in the IAT phase with low ionic strength solution (LISS)/Coombs’gel card. Results: A total of 46,654 blood samples were tested (22,326 donors and 24,328 patients) during the period January 2012 to August 2014. Among these 43,771 (93.82%) were Rh D positive and remaining 2,883 (6.18%) were Rh-D negative. A total of 30 individuals (16 donors and 14 patients) were weak D positive constituting 1.04% of Rh-D negatives and 0.06% of total individuals screened. Conclusions: This study shows the prevalence of weak D antigen in our population who are representative of Rayalaseema region of Andhra Pradesh. It also stresses the need to identify individuals with variant D (rather than weak or partial D) and to inform them about their status as donor and recipient of blood/organ.

journal of clinical and scientific research

A study on Rh incompatibility and frequency of weak D among blood donors and patients at a tertiary care referral teaching hospital in Tirupati, Andhra Pradesh