Exam 2 Immune Mediated Diseases Flashcards
Which of the following is false regarding IMHA?
a. Associated with a Type 3 HST reaction
b. Primary IMHA have a mortality between 21 and 83%
c. Half of the deaths are associated with thromboembolism
d. Cocker spaniel female dogs are more commonly affected
a. Associated with a Type 3 HST reaction
**Type 2 HST reaction
Which immunoglobuins predominate IMHA?
IgM and IgG
True/False: splenomegaly and hepatomegaly are assocaited with intravascular hemolysis.
False
**extravascular hemolysis, IV hemolysis causes Hgbinemia and Hgburia
With extravascular hemolysis ___ attach to the RBC and with intravascular hemolysis ___ attach to the RBC.
Extravascular = IgG Intravascular = IgM
True/False: The majority of canine and feline IMHA are secondary.
False
**primary/ idiopathic
Which of the following is not seen on diagnostics with IMHA?
a. Left shift neutrophilia
b. Hemolysis
c. Spherocytosis
d. Decreased reticulocytes
e. Incrased normoblast (nRBC)
d. Decreased reticulocytes
**increased reticulocytes
Which test looks for direct auto-antibodies against erythrocytes?
Coomb’s test
When calculating a blood transfusoin in dogs what is the k value that we used? What is the value in cats? What is the PCV required for both?
Dogs: 90
Cats: 66
Required PCV = 25%
Which of the following is false regarding blood groups?
a. DEA 4 is the universal donor in dogs
b. Type A blood is more common in cats
c. DEA 1.1 positive is good and its the one dogs will most likely react to
d. First time recipients can get any blood group
c. DEA 1.1 positive is good and its the one dogs will most likely react to
**DEA 1.1 negative
What is the best immmunosuppressive drug that can be combined with azathioprine?
Prednisolone
What drug can be used to prevent coagulopathy and is better than aspirin?
Unfractionated heparin
When using unfractionated heparin we need to monitor factor ___ levels to prevent bleeding
factor X
What three things are most deaths of IMHA attributed to?
Thromboembolism, renal failure, liver disease
Which of the following is not seen with DIC?
a. Increased FDP
b. Prolonged PTT
c. Thrombocytopenia
d. Decreased FDP
d. Decreased FDP
An 18 kg dog is diagnosed with primary IMHA. Its PCV is currently 12% and you use packed RBC (PCV 70%). How much blood is required in mL?
300.8 mL