Blood Bank 6th Edition Boc Study Guide Questions And Correct Answers

During an emergency situation with no time to determine ABO group and Rh type on a current sample for transfusion, it is noted that previous records state the patient is known to be A, Rh-negative. The technologist should: {Ans: release O Rh-negative Red Blood Cells}Post transfusion purpura is usually caused by: {Ans: anti-HPA-1a}Nine days after being transfused with an HLA-matched platelet transfusion, a patient develops a fever, watery diarrhea, skin rash and demonstrates increased liver enzymes. This patient may have transfusion-associated: {Ans: graft vs host disease}The most appropriate laboratory test for early detection of acute post transfusion hemolysis is: {Ans: visual inspection for free plasma hemoglobin}Most blood group systems are inherited as: {Ans: autosomal codominant -Blood group genes are autosomal; they are not carried on the sex gene. Whenever the gene is inherited, the antigen is expressed in the RBC, which is known as codominant.}The membrane attack complex (MAC) formed during the activation of complement via the classical pathway consists of: {Ans: C5b through C9 -Once activated, the membrane attack complex (MAC) results in cell lysis and includes C5b through C9.}