Cross-matching blood

Question 1

Blood Grouping: ? and ? groups of the patient are determined.

Antibody Screening: Patient serum / plasma screened for ? antibodies
that would cause significant ? of transfused cells.
—–o Tested using at least two group ? donors expressing a ? range of
antigens.

Answer 1

abo
rhd
atypical
haemolysis
o
wide

Question 2

These two processes are automated, and donor blood of the same ?/?
group, and without specific ? if atypical ? are found, is then cross matched;

Answer 2

ABo
RhD
antigens
antibodies

Question 3

—> o Indirect agglutination test: ? RBCs added to ? serum, then ? ‘s reagent is added, ? indicates that the patient’s serum has antibodies for the donor RBCs. This test is always performed ?

Answer 3

donor
patient
Coombs
agglutination
pre-transfusion

Question 4

—> o Direct agglutination: patients ‘?’ RBCs are added to ?’s reagent, and if they agglutinate that indicates that there is an ? ? process occurring, with the RBCs coated with ?. This is ? required pre-transfusion.
• This is also known as ‘?’ test.

Answer 4

washed
coombs
autoimmune haemolytic
immglobs
rarely
coombs

Question 5

ALL blood products need to be cross-matched except ?.

Answer 5

platelets

Question 6

For patients undergoing ? surgery where a transfusion is not expected, a
‘? + ?’ can be performed, with an ? screen performed to confirm it is ?, so that appropriate blood can quickly be made available if required.

If the antibody screen is ?, compatible blood should always be ? in
advance.

Answer 6

elective
group and save
antibody
negative
positive
reserved

Question 7

Emergency situations (massive transfusion protocol);

? units of ? ? blood to be made available immediately.
Blood of the same ABO/ rhesus group will be available in ?-? mins.
Fully cross-matched blood will be available within ? minutes.

Answer 7

2
o neg
10-15
45