Which of the following would be cause for deferral for a male donor?  

Per policy 4104 Skills List, Continuous Positive Airway Pressure (CPAP) may be used in an awake, alert patient who can maintain their own airway and complains of severe respiratory distress suggestive of which conditions: Select all that apply:

A patient who has a pathologic autoanti-I must be transfused with a:

Which of the following blood group phenotypes is associated with resistance to malaria infections?

The automated blood bank analyzer does not detect weak forms of the D antigen.  The supervisor stated that it should be acceptable since the analyzer would prevent a weak D patient from developing anti-D.  Why is this true?

A patient recovering from a Mycoplasma pneumoniae infection was admitted for observation.  The patient’s hemoglobin was 7g/dL.  The antibody screen revealed reactions at immediate spin and positive DAT.  The most likely antibody is:

A 56 year old male was recently diagnosed with a disorder that requires therapeutic apheresis. Which of the following could it be?

During the storage of a unit of packed red blood cells:

An antibody was identified as anti-M.  The patient serum reacted with M+N- cell with a 3+, while a M+N+ cell was 1+.  What is the most likely cause of the varying degree of reactions?

An O positive anemic patient has a positive autocontrol and positive antibody screen.  The screen was positive at immediate spin with a 4+ reaction.  The 37C reaction was positive with a 2+.  The titer was positive at 1:264.  Which of the following may be the problem?