Which genotype is associated with an individual who is heterozygous for big C?          

What is the deferral period following collection of a double red cell unit by apheresis?

The genotype for a given adult is: Hh, BO, sese, Lele.  Which of the following depicts this person’s red cell phenotype.

Match each blood group system with the appropriate description

Liquid red blood cells must be stored under controlled conditions that maintain the temperature at:

A female who is blood group type A (her mother is blood group type O) gives birth to baby boy who is blood group type B.  The baby’s father’s genotype can be any of the following EXCEPT?

During a donor interview for apheresis platelet donation, the donor informs the interviewer that they have been taking aspirin daily for the past two years until discontinuing the medication one week ago.  What is the most appropriate course of action to take at the present time?

Most frequently, the autoantibody in a warm autoimmune hemolytic anemia (WAIHA) shows specificity for:

A 62-year-old female arrives at the hospital for cardiac surgery. Pre-surgical laboratory testing is performed upon arrival.  The results are as follows: Hemoglobin/Hematocrit: 10.5g/dL/ 32% Platelet count: 45,000/uL Type & Screen: B D-Positive with Negative antibody screen Crossmatch (XM): 2 out of 2 units of RBCs compatible Priot to surgery, a platelet transfusion is ordered.  One B D-positive apheresis platelets (SDP) was issued and transfusion was begun after appropriate checks were completed.  Twenty minutes later, the pre-operative clinic calls the blood bank to report that the patient was experiencing the following symptoms after receiving just 20mL of the platelets: urticaria, pruritis, dyspnea, hypotension, and angioedema of the tongue, throat, and eyes.  The patient required immediate intubation to maintain her airway. Which of the following is the most likely type of transfusion reaction this patient was experiencing?

The immunodominant sugar responsible for the specificity of the A antigen is: