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1.
J Coll Physicians Surg Pak ; 25(10): 757760-760, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26454398

ABSTRACT

OBJECTIVE: To assess the Rhesus (Rh) and Kell (K) phenotype of voluntary blood donors and lay foundation of a data bank of voluntary blood donors. STUDY DESIGN: Cross-sectional study. PLACE AND DURATION OF STUDY: Blood Bank, The Aga Khan University Hospital, Karachi, in the year 2014. METHODOLOGY: Voluntary blood donors were inducted after taking written informed consent. Three -5cc of EDTA anticoagulated blood sample was taken to phenotype red cells for C, c, E, e, and Kell antigens using antisera. [DiaMedSwitzerland]. RESULTS: Hundred blood donors were included in the study. ABO blood groups of the donors were: O [37%], B [31%], A [21%] and AB [11%]. Ninety-seven percent were Rh D positive while 3% were Rh D negative; 'e' antigen had the highest frequency [99%], while 'E' antigen was the least frequent [19%]. The most common probable Rh phenotype was R1R1 ((DCe/DCe) in 44 [44%]. In the Kell system, all the donors [100%] had phenotype of K-k+. CONCLUSION: The most common blood group was O +ve. The pattern of Rhesus antigen expression and phenotype found in this study was concordant to that reported previously from Asia. However, there was a much lower frequency of K antigen.


Subject(s)
Blood Banks , Blood Donors , Kell Blood-Group System , Rh-Hr Blood-Group System , ABO Blood-Group System , Blood Grouping and Crossmatching , Cross-Sectional Studies , Humans , Pakistan , Phenotype
2.
Transfus Apher Sci ; 52(1): 122-7, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25151095

ABSTRACT

BACKGROUND AND OBJECTIVE: This audit was conducted as a part of a quality assurance activity to assess the frequency of receiving completely filled out blood transfusion reaction forms which were accompanied by the required samples. Once this information is known, we will elevate the bar each year to achieve 100% compliance. The sub-aim was to evaluate the frequency of the reported transfusion reactions. MATERIALS AND METHODS: The study was conducted from 1st April 2010 to 30th April 2011. The information was evaluated and the frequency of receiving completely filled blood transfusion reaction forms was assessed. The variables identified were the type of transfusion reaction, the blood component transfused, the health care personnel filling the form, and whether there was legible handwriting and a completely filled form. Transfusion reactions were reported as a percentage of the total number of units transfused. RESULTS: During the study period, 17,880 packed red cells, 13,200 platelets, 13,620 fresh frozen plasma and 2256 cryoprecipitate were transfused and 106 transfusion reactions (0.23%) were reported. Of these, febrile non hemolytic transfusion reaction was the most common (47%), the majority caused by packed red cells. CONCLUSION: Eighty-four percent of the transfusion reaction forms were completely filled as per our criteria. Febrile non hemolytic transfusion reactions were the most common reactions reported.


Subject(s)
Blood Component Transfusion/adverse effects , Clinical Audit , Risk Management/methods , Risk Management/standards , Female , Humans , Male , Risk Management/organization & administration
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