Mmsc 420 exam - Study guides, Class notes & Summaries

What kind of specimen tube should we use for a DAT? correct answersPurple top, EDTA Which of the following would NOT be a patient that we would perform a DAT on? A: A patient with low Hgb and HCT levels but with no known bleeding B: A mother who has just given birth to a type O neg baby C: A patient exhibiting signs of an acute hemolytic transfusion reaction after receiving A pos RBCs from a donor D: A baby born to a mother who is type O correct answersB Does a positive DAT result me...

cold reacting antibodies correct answers "LMNOPs" -lewis antibodies: anti-Lea, anti-Leb -anti-M -anti-N -ABO antibodies: anti-A, anti-B, anti-A,B -anti- P1 -anti-S -anti-s anti-M correct answers -usually an IgM antibody, sometimes IgG -enzyme destroyed antigen -displays dosage -cold enhanced -usually not clinically significant: HDFN and HTRs may occur if reacting at 37 C or above -usually naturally occurring or autoantibodies - ~70-80% of people are antigen positive (not many p...

cold reacting antibodies correct answers "LMNOPs" -lewis antibodies: anti-Lea, anti-Leb -anti-M -anti-N -ABO antibodies: anti-A, anti-B, anti-A,B -anti- P1 -anti-S -anti-s anti-M correct answers -usually an IgM antibody, sometimes IgG -enzyme destroyed antigen -displays dosage -cold enhanced -usually not clinically significant: HDFN and HTRs may occur if reacting at 37 C or above -usually naturally occurring or autoantibodies - ~70-80% of people are antigen positive (not many p...

expected ABO typing results correct answers forward and reverse typing results match unexpected ABO typing results correct answers -forward and reverse typing results do not match (extra reactions, missing reactions) -current typing does not match historical records pre-analytical errors (ABO discrepancy) correct answers errors occurring before patient sample is tested that lead to ABO discrepancy -incorrect identification of patient -incorrect labeling of specimen (labeling needs to oc...

activate classical complement pathway correct answers -bacteria -enveloped viruses -tumor cells -foreign cells complement inhibitor proteins correct answers factors that prevent the complement pathways from spontaneously activating -help to stop complement system once the reaction is not needed anymore classical complement pathway correct answers 2 molecules of IgG or 1 molecule of IgM + *calcium* leads to complement fixation to lyse foreign cells -factor C3bC3d coats RBC membrane (de...

MMSC 420 Exam 1 with complete solution;2023 edition expected ABO typing results forward and reverse typing results match unexpected ABO typing results -forward and reverse typing results do not match (extra reactions, missing reactions) -current typing does not match historical records pre-analytical errors (ABO discrepancy) errors occurring before patient sample is tested that lead to ABO discrepancy -incorrect identification of patient -incorrect labeling of specimen (labeling needs...

MMSC 420 Exam 1 with complete solution;2023 edition expected ABO typing results forward and reverse typing results match unexpected ABO typing results -forward and reverse typing results do not match (extra reactions, missing reactions) -current typing does not match historical records pre-analytical errors (ABO discrepancy) errors occurring before patient sample is tested that lead to ABO discrepancy -incorrect identification of patient -incorrect labeling of specimen (labeling needs...

MMSC 420 Exam 1 with complete solution;2023 edition expected ABO typing results forward and reverse typing results match unexpected ABO typing results -forward and reverse typing results do not match (extra reactions, missing reactions) -current typing does not match historical records pre-analytical errors (ABO discrepancy) errors occurring before patient sample is tested that lead to ABO discrepancy -incorrect identification of patient -incorrect labeling of specimen (labeling needs...

MMSC 420 final exam review 2023 with complete solution