Clin Path- RBC Parasites.txt

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Author:
Mawad
ID:
284424
Filename:
Clin Path- RBC Parasites.txt
Updated:
2014-09-29 21:00:36
Tags:
vet med
Folders:
vet
Description:
RBC parasites
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  1. Parasites that infect RBCs usually cause ________ anemia from ________.
    regenerative; hemolysis (mostly extravascular)
  2. Which parasites are associated with intravascular hemolysis? (3)
    Babesia, Cytauxzoon (to a lower extent; mostly extravascular), Theileria
  3. Mycoplasma haemofelis
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Transmission-fleas and ticks, saliva from infected cats, in utero, nursing, blood transfusion
    • Description- epicellular organisms that adhere loosely to the RBC membrane; affect cats
    • Anemia-regenerative, extravascular hemolysis; immune mediated
    • Lab- increased liver enzymes, azotemia (high nitrogen in blood)
    • Txt- Doxycycline; infection is chronic
  4. Mycoplasma haemocanis
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Transmission-brown dog tick, in utero, nursing, blood transfusion
    • Description-epicellular organism that forms chains on the membrane
    • Anemia- regenerative anemia due to extravascular hemolysis; parasitemia
    • Lab- Coombs' positive
    • Txt- Doxycycline
  5. Mycoplasma ovis
    Transmission-
    Description-
    Anemia-
    • Transmission- ticks, mosquitoes, contaminated instruments
    • Description- epicellular basophilic cocci and ring forms; young sheep and preg sheep with poor nutrition
    • Anemia- hemolytic anemia
  6. Mycoplasma suis
    Transmission-
    Description-
    Anemia-
    Txt-
    • Transmission- lice, transplacentally
    • Description- epicellular basophilic cocci or rods; young piglets, post-partum sows, and stressed feeder pigs
    • Anemia- acute hemolytic anemia; may be regenerative if they live long enough; transient thrombocytopenia
    • Txt-Tetracycline in feed
  7. Mycoplasma wenyonii
    Transmission-
    Description-
    Anemia-
    Findings-
    • Transmission- same syringe used on multiple animals
    • Description- epicellular basophilic cocci or ring forms; cattle
    • Anemia- mild anemia
    • Findings- edema, fever, lymphadenopathy, decreased milk production
  8. Mycoplasma haemolamae
    Description-
    Anemia-
    Txt-
    • Description-basophilic epicellular cocci or ring forms; llamas and alpacas
    • Anemia-mild to moderate nonregenerative anemia
    • Txt-Oxytetracycline; chronic infection
  9. Feline cytauxzoonosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- Cytauxzoon felis
    • Transmission-ticks
    • Description-blue rings ith eccentric magenta nucleoid structures
    • Anemia-nonregenerative anemia due to extravascular (>intravascular) hemolysis
    • Lab-neutropenia, thrombocytopenia, hyperbillirubinemia
    • Txt-antiprotozoal drugs, enrofloxacin
  10. Anaplasmosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- A. marginale, A. centrale, A. ovis
    • Transmission- ticks, flies, gnats (rickettsia), needles, contaminated instruemtns, transfusion
    • Description-coccoid, ring, drumstick, dumbbell basophilic inclusions
    • Anemia- regenerative anemia due to extravascular hemolysis
    • Lab- MARKED icterus
    • Txt-long-acting tetracycline; REPORTABLE DISEASE
  11. Theilerosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Control-
    • Organism(s)- Theileria buffeli
    • Transmission- Ixodid ticks
    • Description- introerythrocytic piroplasms and intralymphocytic schizonts
    • Anemia- Regenerative anemia
    • Lab- lymphocytosis, hyperbilirubinemia/uria
    • Control- immunization, oxytetracycline
  12. Bovine babesiosis
    Organism(s)
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- B. bigemina (paired tear drop- shaped); B. bovis (round)
    • Transmission- ticks or mechanical transmission
    • Description-intracellular protozoans
    • Anemia- Regenerative anemia due to intravascular/extravascular hemolysis
    • Lab- RBC agglutination, thrombocytopenia, hyperbilirubinemia/uria
    • Txt-REPORTABLE DISEASE
  13. Equine babesiosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- B. caballi, Theileria equi
    • Transmission- ticks and mechanical transmission
    • Description- B. caballi (large) paired piriforms; Theileria equi (small) spindle to round inclusions
    • Anemia- Regenerative anemia
    • Lab-thrombocytopenia
    • Txt-Imidocarb
  14. Canine babesiosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- B. canis, B. caballi, B. bigemini are tear drop-shaped protozoans; B. canis vogeli; B. gibsoni is round to oval or ring-shaped
    • Transmission- ticks, placenta, blood transfusion
    • Description- intracellular
    • Anemia-Regenerative anemia due to intravascular (acute) or extravascular (chronic) hemolysis
    • Lab- lymphocytosis, thrombocytopenia, bilirubinemia/uria, hemoglobinemia/uria, parasitemia, Coombs' positive
    • Txt- anti-babesial drugs, Imidocarb
  15. Feline bartonellosis
    Organism(s)-
    Transmission-
    Description-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- B. henselae, B. clarridgeiae
    • Transmission- fleas, ticks
    • Description- Small, curved gram-negative bacteria
    • Anemia- transient anemia
    • Lab- eosinophila
    • Txt- Antibiotics
  16. Canine bartonellosis
    Organism(s)-
    Transmission-
    Anemia-
    Lab-
    Txt-
    • Organism(s)- B. vinsonii subsp. berkhoffi
    • Transmission- ticks
    • Anemia- frequently immune-mediated
    • Lab- thrombocytopenia, neutrophilia, eosinophilia, monocytosis, hemoglobinemia/uria
    • Txt- Antibiotics

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