Blood Groups Flashcards
(47 cards)
What verifies compatability between donor and recipient
Cross-matching
Blood groups are… (3)
- Inheritable
- Species-specific
- Immunogenic
T/F - blind transfusions at birth are usually safe
True - most animals lack blood group at birth
How many blood groups do horses have
7
T/F - horses have a universal donor blood group
False - none
Which equine blood groups are most immunogenic
EAA
EAQ
Equine blood groups
EA……
- A*
- C
- D
K - P
- Q*
- U
How can you test a foal for blood group parentage
DNA test at hair root
A first mismatched transfusion in a horse is…
Well tolerated —> few alloantibodies
How can horses be sensitized to blood groups
- Prior transfusion
- Pregnancy
- Vaccine
Future progeny of a sensitized mare are more likely to suffer from what?
Neonatal isoerythrolysis
If a sensitized horse is given a mismatched transfusion, what happens?
Death
Emergency situation with a horse needing blood. Cannot type. What do you do?
Give blood from same breed or close relative
Which blood groups should you not give a horse if you are uncertain of blood type
EAA
EAQ
Horse blood donor criteria
- >1000lbs
- EIA-ve
- Normal to high Hct
- Brood mare blood groups must be idnetical to prevent NI
How many blood groups do cows have? How many antigens?
- 70+antigens
More sensitive bovine blood group
J - not part of RBC membrane, antigen reactions
Avoid!
What’s an application of bovine blood testing
Parentage
What happens in a first mis-matched transfusion in a cow
Nothing – transfusion reactions are
Unmatched blood results in rapid RBC removal
Which canine blood groups are most antigenic? What does mismatching result in?
DEA 1.1, 1.2
Hemolysis
Which canine blood groups will result in increased removal of transfused RBCs if mis-matched
DEA 3, 5, 7
Which canine blood groups have alloantibodies
DEA 3, 5, 7
Which breed are ideal donors? Why?
Greyhounds - higher Hct
