Bovine Hematology Flashcards
what can a transfusion reaction look like?
fasciculations
hives
tachypnea/tachycardia
arrhythmias
sudden death
what is thrombophlebitis?
trauma leading to venous inflammation -> irreversible intravascular clot
what is Anaplasma marginale?
protozoan parasite of red blood cells
Dermacentor spp
how can you treat Anaplasma marginale?
22mg/kg oxytetracycline for 5 days or in feed
what causes babesiosis?
Babesia bovis
Babesia bigemina
what are the most common hematologic conditions of cattle?
anemia
lymphosarcoma
congenital and acquired bleeding disorders
how much blood can you collect from a cow?
4-6L from average holstein
can you poke the milk vein?
no
what are risk factors for thrombophlebitis?
inappropriate restraint
poor needle size selection
inappropriate vein selected
perivascular administration of some drugs
what drugs, when administered perivascularly, can cause thrombophlebitis?
flunixin
dextrose
tetracycline
sodium iodide
who does Anaplasma marginale affect most?
adult cattle
is hemoglobinuria seen with Anaplasma marginale?
no
what is prognosis of Anaplasma marginale?
mortality can be high
once infected, always infected
what transmits babesiosis?
Rhipicephalus ticks
is hemoglobinuria seen with babesiosis?
yes
how can you treat babesiosis?
cull immediately to prevent spread: call state
what does bovine leukemia virus cause?
lymphosarcoma
how is bovine leukemia virus transmitted?
iatrogenic: needles, palpation sleeves
via colostrum, calving fluids, nasal/ocular secretions
in utero
