LAB: SCREENING TEST FOR LOW TITER GROUP "O" BLOOD Flashcards
why are type O individuals considered to be universal red cell donors
due to the absence of A and B antigens on the RBC surface
how can non-O recipients transfused with type O blood be incompatible
if the titer of the Abs is high enough to cause a reaction
how can incompatibilities of O donor and non-O recipients be detected
minor crossmatching
what blood component should be given to avoid reactions brought out by Abs
prbcs
type O donor is considered only as a universal donor if the Ab titer is at what value
less than 1:50
volume of serum and NSS in 1:50 dilution of group O serum
0.1 serum + 4.9 mL NSS
tubes in screening test for titer group O blood
unknown serum/plasma w/ A cells (UA)
unknown serum/plasma w/ B cells (UB)
diluted serum/plasma w/ A cells (DA)
diluted serum/plasma w/ B cells (DB)
interpret:
UA +
UB+
DA 0
DB 0
Low titer O
interpret:
UA +
UB +
DA +
DB +
high titer O
interpret:
UA 0
UB 0
DA 0
DB 0
inconclusive
