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93 Cards in this Set
- Front
- Back
What are the major and minor systems affected by hepatozoonosis?
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1 - MS
2 - GI |
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What is the main species affected by Hepatozoonosis?
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dog
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What agents cause hepatozoonosis?
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H. americanum (NA)
H. canis |
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What is the vector for hepatozoonosis?
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Ambyloma maculatum
-Gulf Coast Tick |
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What are the carriers for Hepatozoonosis?
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coyote and bob-cat
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The primary clinical sign of hepatozoonosis is in the MS. What are the details?
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muscle pain and atrophy, severe hyperestheisa over the paraspinal region, joint pain (periostitis), stiffness
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Is hepatozoonosis an acute or chronic disease?
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chronic wasting disease of dogs
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How is H. americanum transmitted?
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ingesting the tick
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GI is a secondary symptom of hepatozoonosis. describe.
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often seen before muscle pain; acute, bloody diarrhea
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Is there a fever with hepatozoonois?
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yes - cyclic
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What are three common things to see on the lab report with hepatozoonosis?
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-neutrophilic extreme leukocytosis +/- left shift (looks like leukemia)
-non-regenerative anemia of chronic disease -hypoalbuminemia (because also have protein loosing nephropathy (renal disease and failure) |
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What are you looking for on radiographs with hepatozoonosis?
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periostitis where muscles attach to bones (long bones and pelvis)
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What is the best way to diagnosis hepatozoonosis?
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demonstrate organism - gamonts in neutrophils or monocytes in blood
-tissue - skeletal muscle biopsy (cystic form) -also can do ELISA or PCR |
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What is the treatment for hepatozoonosis?
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-For remission (TCP - TMPS/chloramphenicol/pyrimethamine) for 14 days
-To reduce relapses - decoquinate daily -NSAIDs to reduce joint pain also - coccidiostat Toltrazonuril |
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How long are dogs infected with hepatozoonosis?
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life - long infection
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What is the one primary and three secondary systems affected by Borreliosis?
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1- MS
2 - Renal, GI, Cardiac -also CNS |
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What is the species most affected by Borreliosis?
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dog
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What is the vector for Borreliosis?
-How long must it be attached? |
Ixodes scapularis/pacificus
48 hours |
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What is the agent that causes Borreliosis?
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Borrelia burdorferi
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What is the reservoir for Borreliosis?
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deer/other wild life, rodents
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The primary system hit by Borrelia is MS - describe the symptoms.
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fever, anorexia, lethargy, lymphadenopathy, lameness +/- swollen joints arthropathy with acute syndrome
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Is Borreliosis acute or chronic?
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acute to asymptomatic, kidney disease with chronic form (acute, progressive renal failure)
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Renal disease is another secondary problem of Lyme disease, why?
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immune complexes form - immune complex glomerulonephritis
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What aspect of GI problems do you see with lyme disease?
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vomiting and diarrhea
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Borrelia affects the heart - what happens?
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heart block, collapse, weakness, tachyarrythmias, conduction bradycardia
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How do you diagnose Borrelia?
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seriologic testing for antibodies
-ELISA, IFA, Western Blot -also part of the Snap 4DX the measures antibody to the C-6 B. burgdorferia protein |
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What drugs will you use to treat Borrelia?
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-drugs from peniciilins and tetracyclins
- amocicillin, doxy, cefitriaxore, azithrymycin - also NSAIDS for arthropathy |
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How do you prevent Borrelia?
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-prevent ticks - permethrins and amitraz
- vaccination - generate OpsA and Ops B antibodies |
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What are the 3 primary systems and one secondary system hit by Leishmaniasis?
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1 - Renal, Derm, HL
2 - MS |
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What is the primary animal hit by Leishmania?
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dog - foxhounds are carriers
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What is the agent of Leishmainia?
Vector? |
L. infantum
Plebotomus |
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How is Leishmania transmitted?
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direct/maternal, bites, exposure to blood
-amastigotes inside of marcophages |
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Dermatologic signs are a main sign of Leishmania. Describe these lesions.
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seboreic skin, draining lesions, alopecia with severe, dry desquamitization
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What are the key lab findings with Leishmania?
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-HYPERproteinemia with a polyclonal gamopathy
-thrombocytopenia due to high gammaglobulins -non-regenerative anemia -signs of renal failure (proteinuria, azotemia, ect.) |
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what three treatment plans do we do?
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optimal
alternative emergency |
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The MS system is secondarily hit with Leishmania, what is seen with this?
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supperative polyarthropathy that is non-septic
-immune complexes develop in the joints, polyarthritis |
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How do you diagnose Leishmania?
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-demonstrate the organism in BM, splenic or lymphnode smears
-amastigotes in cytoplasm of macrophages -also can use IFA or ELISA |
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Can you clear Leishmania from the body?
What is the treatment? |
no
antimony with allopurinol -liposomal amphotericin B |
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What 2 primary and 1 secondary system are hit by cytauxzoonosis?
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1 - Respiratory and HL
2 - GI |
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What is the main species affected by cytauxzoonosis?
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cats
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Is cytoauxzoona a acute or chronic disease?
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acute - 1-2 weeks to develop
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What is the vector and reservoir for cytausxzoonosis?
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vector - Dermacentor variabilis
reservoir - bobcat |
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What is the agent that causes cytauxzoonosis?
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C. felis
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HL is a primary system hit by C. felis. What are the clinical signs associated with this?
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-DRAMATIC thromocytopenia that causes hemorrhage, coagulation disorder, pancytopenia, hepatosplenomegaly
-obstruction of blood flow thru tissues by mononuclear infiltrates and from anorexia |
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What are the lab findings with cytauxzoonosis?
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-anemia, severe thrombocytopenia, neutropenia, icterus
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What part of the GI is affected by cytauxzoonosis?
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LIVER
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How do you diagnosis cytauxzoonosis?
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-clinical signs (fevor, pale MM, icteric, resp distress, hepatosplenomegaly)
- Blood smear - ID orgnaism -PCR with EDTA blood -Rads - lung, spleen and liver changes -histopath - schizonts |
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What is the treatment for cytauxzoonosis?
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-supportive care (fluids, blood, heparin for DIC)
-Imidocarb and Diminaxene (2 doses, 2 weeks apart) - fluroquinolones, doxycycline |
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What is the prognosis for cytauxzoonosis?
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poor to grave -- usually fatal
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What is the one and only system affected by Mycoplasma?
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HL
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What is the main species affected by Mycoplasma?
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cat
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What are the agents that cause mycoplasma in the cat?
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M. haemofelis, haemomintom, turicasis
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What is the main vector for Mycoplasma?
How is it spread? |
fleas and ticks (more important in dogs)
-oral, IV, IP, blood, transplacental |
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What are the risks associated with getting Mycoplasma?
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outdoor, male, stress (FIV, FeLV)
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Mycoplasma affects the HL system. Describe the clinical signs.
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EXTRAvascular hemolysis (organism sits on top of cells)
-regnerative anemia -inflammatory leukogram -splenomegaly -icerus |
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What secondary disease does the dog get with Mycoplasma?
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Ehrlichia, Babesia
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How do you diagnose Mycoplasma?
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-blood - fresh from an ear, not in EDTA
(demonstrate org) - response to treatment - when in doubt, treat -PCR |
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What are the 4 antibacterials that with decrease the number of organisms of Mycoplasma, but not eliminate the disease? TEDC
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TEDC
-tetracycline -doxycycline - chloramphenicol -enrofloxacin |
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What should you assume about all animals that you find are positive for Mycoplasmosis?
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assume they are carriers - can not get rid of all of the organisms
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What are the main systems affected by Lepto (3 primary, 2 secondary)?
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1- renal, GI, hemolympathics
2 - MS, Cardiac |
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What is the main species affected by Lepto?
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dog
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How is Lepto transmitted?
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abraded skin, penetrates mucous membranes, other routes (bites, sex, transplacental, fomites)
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Where does Lepto replicate?
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vascular endothelium
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What 2 organs are most affected by lepto?
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liver
kidney (anuria/oliguria acutely; PU/PD chronically) |
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MS system is hit with lept. What lab value might you see an increase in?
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CK
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What lab values are abnormal with Lepto?
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-leukocytosis, thrombocytopenia, anemia
-increased liver enzymes and bilirubin -azotemia and isothenuria -infammatory sediment -CK increase |
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What other systems (other than the main) are affected by Lepto?
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resp - cough and distress
-anterior uveitis -CNS - meningeal pain |
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What is the Gold Standard for serology for Lepto?
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MAT - microscopic agglutination test
1:3200 in non-vacinated or 4 fold increase over 2 weeks |
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How do you definitively diagnose Lepto?
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ID in urine, blood, tissue
PCR on blood and urine not really helpful (false positives) -histopath is good |
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What is the treatment for Lepto?
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fluids
-antibiotics to (1) eliminate bacterimai (ampiclin, PPG) (2) eliminate carrier state (doxycyclin, macrolydes, then the mycins |
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How many serovars does the Lepto vaccine have?
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4 - killed subunit vaccine
-grypo, pomona, icterohemorragicum, canicola |
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Is Lepto zoonotic?
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yes
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What are the main systems hit by RMSF?
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1- CNS, HL, Resp
2- renal, derm |
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What is the main species hit by RMSF?
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dog
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What is the agent that causes RMSF?
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rickettsia rickettsii
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What are the vectors for RMSF?
How long do they need to be attached for disease to occur? |
dermacentor variabilis and andersoni (dog and wood)
3-6 hours - SHORT |
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What are the reservoirs for RMSF?
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rodents, hares, rabbits - 15% seroprevelance where ticks are found
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Where doe the RMSF replicate?
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endothelial cells
-cell replication and damage, causes vasculitis and can see disease as soon as 2-3 days after exposure |
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The CNS system is one of the main systems hit by RMSF. What are the clinical signs?
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acute vestibular problems, cervical pain, seizures
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Are resp signs with RMSF more prominent than Lepto?
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YES
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What are the HL signs with lepto?
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thrombocytopenia --> petechia, eccymosis, edema of peripheral extremities, acute vascular damage and necrosis
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What are the lab values with RMSF?
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leukocytosis
thrombocytopenia mild anemia |
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What are other clinical signs seen with RMSF?
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conjunctivitis, uveitis/red eye
joint pain |
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How do you diagnosis RMSF?
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-serology - titer greater than 1:512-1:1024 or 4 x increase
-direct FA or IHC -PCR |
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What is the treamtment for RMSF?
TEDC |
TEDC
tetracyclin, enroflox, doxy, chloramphenicol for 10-14 days |
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What is the prognosis for RMSF?
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good - life-long immunity
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What are the 2 diseases where HL are not affected?
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Borreliosis
Hepatozoonosis |
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What are the 2 disease where derm problems are?
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Prim - leishmania
Sec - RMSF |
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What are the 2 disease where CNS is a problem?
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Prim - RMSF
Sec - Ehrlichiosis |
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What 2 disease is respiratory greatly affected?
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RMSF and cytauxzoonosis
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What are the 2 diseases where cardiac is a secondary problem?
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Borreliosis and Lepto
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What 3 disease are not affect in the MS system?
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RMSF
Hemobartonella cytausxzoonosis |
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What 5 disease affect the renal system?
Primary - 2 Secondary 3 |
Primary - Lepto, Leishmania
Secondary - RMSF, Borrelia, Ehrlicia |