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?

A 45-year-old pregnant female was admitted for a C-section. The physician ordered a STAT blood type and antibody screen. Based on the typing results, what is the most likely interpretation? Forward Typing Reverse Typing Anti-A: 3+ a1 cells: 3+ Anti-B: negative a2 cells: negative b cells: 3+

What are the possible phenotypes for a child with a mother with AO genes and a father with BO genes?

A cold-reacting antibody is found in the serum of a recently transfused patient and is suspected of being anti-I. The antibody identification panel shows reactions with all cells at room temperature, including the autocontrol.  What procedure would help in positively identifying the antibody?

A pregnant female had three previous pregnancies. Her first baby was born healthy.  The second was jaundiced and anemic at birth and required exchange transfusion. The third baby was stillborn.  Which of the following is the most likely cause?