Using a producr insett for a commercial source of antisera, identify the product limitations as described by the mamufacturef. Exercise 3:5 Read a reagent quality control procedure from a transfusion service and identify the criteria for acceptable performance for cuch reagent. Exercise 3.6 The saline in an automated red cell washer did not fill the teit tubes consistently during a routine quality control check. 1. Would this situation affect the results of the AHG rest? 2. How would you detecr this problem in testing? Exercise 3.7. You have added Ig Sr-sensitized red cells to the negative IAT result of the antibody sereen procedure. You observe agglutination in the tube. Is the antibody screen interpretation positive or negative? Explain your answer. Exercise 3.8 A donor unit obtained from the central blood bank was labeled as group O,D negative. When the hospital transfusion service confirmed the donor's type, the test result was group O,D positive. An investigation of the label issued at the blood bank verified the unit's correct labeling. How ean you explain the discrepancy in the D typing of this donor unit? Exereise 4.5 How many RBC units do you need to screen to find two antigen-negative RBC units? R. antigens occur in the population with the following frequencies: E+=30% K+=9% jk(a+b)=77%. alleged fi d. genetic n alleged f 4. Which of t a. all races b. the gene c. there ar d. recomb