MLT 120 U5 exam from outline | Questions with
100% Correct Answers | Verified | Latest Update
2026
Save
Terms in this set (22)
Procedures involved in compatibility -Properly identify patient's sample, history, and
testing records.
-Perform ABO and Rh typing on patient; screen for
unexpected antibodies.
-Confirm ABO/Rh of donor units.
-Perform crossmatch.
Limitations of compatibility testing -Does not guarantee a successful transfusion. Does
not detect pathogens or prevent allergic reactions.
-Does not prevent antibody production to foreign
antigens on donor RBCs.
-Does not prevent delayed transfusion reactions
(Kidd).
Type & Screen, Crossmatch -Physician specifies quantity and type of product
desires.
-ABO, Rh, and antibody screen are performed on
patient.
-Compatible units are selected and crossmatch is
performed.
, AABB request form requirements -Patient's first and last name
-Two unique ID numbers: medical record and date
of birth
-Tests to be performed
-If transfusion requested: type of component
requested, date of request, date of anticipated
transfusion.
Preferred patient samples and tubes -Patient plasma is preferred for gel testing. Small
for compatibility testing clots in serum could be confused for agglutination
in gel tests.
-Some patients may have prolonged clotting times
which would delay compatibility testing.
-Plain red tube is preferred for serum; lavender is
preferred for plasma.
Transfusion ID protocol -Most hospitals use a second wristband for
transfusion.
-Hospital armband contains patient's first and last
name and unique ID numbers.
-Blood bank wristband containing same info and
separate ID is attached to patient at time of
specimen collection. It must be present at time of
transfusion.
-In emergencies where patient ID is unknown,
temporary IDs are given.
100% Correct Answers | Verified | Latest Update
2026
Save
Terms in this set (22)
Procedures involved in compatibility -Properly identify patient's sample, history, and
testing records.
-Perform ABO and Rh typing on patient; screen for
unexpected antibodies.
-Confirm ABO/Rh of donor units.
-Perform crossmatch.
Limitations of compatibility testing -Does not guarantee a successful transfusion. Does
not detect pathogens or prevent allergic reactions.
-Does not prevent antibody production to foreign
antigens on donor RBCs.
-Does not prevent delayed transfusion reactions
(Kidd).
Type & Screen, Crossmatch -Physician specifies quantity and type of product
desires.
-ABO, Rh, and antibody screen are performed on
patient.
-Compatible units are selected and crossmatch is
performed.
, AABB request form requirements -Patient's first and last name
-Two unique ID numbers: medical record and date
of birth
-Tests to be performed
-If transfusion requested: type of component
requested, date of request, date of anticipated
transfusion.
Preferred patient samples and tubes -Patient plasma is preferred for gel testing. Small
for compatibility testing clots in serum could be confused for agglutination
in gel tests.
-Some patients may have prolonged clotting times
which would delay compatibility testing.
-Plain red tube is preferred for serum; lavender is
preferred for plasma.
Transfusion ID protocol -Most hospitals use a second wristband for
transfusion.
-Hospital armband contains patient's first and last
name and unique ID numbers.
-Blood bank wristband containing same info and
separate ID is attached to patient at time of
specimen collection. It must be present at time of
transfusion.
-In emergencies where patient ID is unknown,
temporary IDs are given.
