Blood Groups (cont.)

M&Ns

100

Due to its reaction temperature, Anti-M can interfere with this testing

Backtype

200

An antibody to the altered version of the N antigen has been known to be seen in this patient population 

Dialysis patient (due to the past use of formaldehyde) 

Last name: Lewis

400

Individuals with the Le(a-b+) phenotype on their red cells cannot make Anti-Le^a because

They have it in their secretions 

The U.S. of Antigens

400

What is the affect of enzymes on the U and S/s antigens respectively?

S/s is destroyed, U isn't affected because it's closer to the RBC surface, below the point where the antigen is cleaved