EXAM #2: REVIEW Flashcards
Describe the plasmodium lifecycle.
1) Sporozites infect the blood and travel to the liver
2) Sporozites transform into Merozites in the liver
3) Merozites can become:
- Trophozites that
- Schiznots that
4) Gametocytes are ingested by subsequent mosquitoes to continue the lifecycle
What cytokines produced by the immune response to Malaria infection can cause a reduction in erythropoieses?
TNF-alpha
IL-1
What species of Babesia are rodents the reservoir for?
B. merzoti
What species of Babesia are cattle the reservoir for?
B. divergens
Describe the Direct Coombs Test.
- Blood sample is taken from patient with hemolytic anemia
- Autoantibodies are bound to the RBCs
- RBCs are washed and presented with anti-human antibodies
Positive test results in agglutination
Describe the Indirect Coombs Test.
- Patient serum is obtained with autoantibodies
- Donor blood is added to serum and autoantibodies bind
- Anti-human antibodies are added and cause RBC agglutination
List the five indications for IVIG.
1) Primary humoral immunodeficieicny
2) Immune thrombocytopenia
3) Chronic inflammatory demyelinating polyneuropathy
4) Hypogammaglobulinemia
5) Post-exposure prophylaxis
What are the indications for FFP?
1) Decreased coagulation factors in massive transfusion
2) Hemophilia
What two antigens are primarily responsible for alloimmunization?
- HLA
- HPA
What are the three indications for plasma?
1) Coagulation factor deficit
2) Massive transfusion
3) ADAMSTS13
List the contents of cryoprecipitate.
- Fibrinogen
- vFW
- VIII
- XIII
What are the indications for cyroprecipitate?
Bleeding–>fibrinogen
Von Willebrand’s Disease–> vFW
Factor VIII–> Hemophilia A
What are the diagnostic criteria for TRALI?
1) No pre-exisiting lung injury or disease
2) Onset within 6 hours of infusion
3) Hypoxemia with SaO2 less than 90% on room air
4) Bilateral infiltrates on CXR
5) No circulatory overload
What four transfusion reactions initially present with fever?
- TRALI
- TABI
- TA-GHD
- Acute hemolysis
What antigen is primarily responsible for delayed hemolysis?
Kidd (anti-kidd antibody)