FA Med Q4, Retic/Abo II

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HLW
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214408
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FA Med Q4, Retic/Abo II
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2013-04-20 12:52:36
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FA Med Q4 Retic Abo II
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FA Med Q4, Retic/Abo II
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  1. C/S of DA vs Volvulus? 5
    • Volvulus:
    • HR >100 + Ping
    • Complete anorexia
    • Sharp ↓Milk
    • More abdominal pain and distention
    • Dehydration/shock/death
  2. Location for ping with LDA?
    • Lower 1/3rd of abd
    • 8th ICS to Paralumbar fossa
  3. Classic location for ping with RDA?
    • Last 5 ribs in Dorsal 1/2 of Abd
    • (cranial to PLF)
  4. DDx for RDA
    • Abo Volvulus
    • Cecal Dilation/Volv
    • Gas in Spiral Colon
    • Off Feed Ping (motility present)
    • Pneumorectum
    • Pneumoperitoneum
    • Physometra
  5. DDx for LDA?
    • *Rumen Tympany* (Liptak) 
    • Peritonitis
    • Physometra (bilateral uterine gas)
    • Pneumoperitoneum
  6. Ping is heard in last 5 ribs on the right
    How do you distinguish between RDA and volvulus?
    • Volvulus:
    • HR >100
    • Ping
    • Severe C/S's
  7. How can u differentiate RDA from volvulus?
    Rectal palpation: Cecum ="french loaf"
  8. how is physometra distinguished from DA?
    • Physometra:
    • pings on R and L
    • Palpable via rectal
  9. what are expected CBC findings with DA?
    Volvulus?
    • DA:
    • N unless concurrent disease

    • Volvulus:
    • PCV/TS altered 
  10. Chem & blood gas with DA? 6
    • Metabolic alkalosis
    • Hypo-Cl/K
    • Hyperlactatemia (prognostic w/volvulus)
    • Hyper/Hypoglycemia
    • Hyperbilirubin (GI stasis)
    • Ketones
  11. what circumstances lead to hyperglycemia vs. hypoglycemia?
    • Hyper = Volvulus +Shock
    • Hypo = 1' ketosis w/neuro signs
  12. [Cl] with...
    LDA?
    Volvulus?

    (N=100)
    • Simple LDA: 80-90
    • Volvulus: 60-80

    (<60 is near death)
  13. what is paradoxic aciduria in cow with DA/metabolic alkalosis?
    • HypoK Cow
    • Preserve K in kidney
    • Secretes H+ in exchange
    • Acidotic urine & Worsens alkalosis
  14. Liptak test with...
    LDA?
    N rumen?
    • LDA = 2-3
    • Rumen = 5-7

    (pH of N abomasum = < 4.5)
  15. What type of DA can you do a...
    Blind/non-surgical approach?
    L approach?
    R approach?
    Toggle?
    • Blind: LDA only
    • L: LDA
    • R: LDA or RDA
    • Toggle: LDA
  16. Distal paravertebral block...
    Where is needle inserted?
    What nerves are blocked?
    • Insert: L1, 2, 4
    • Blocks: T13, L1, L2
  17. for most DA's fluids can be given after surgery, but what circumstance warrants fluids prior to surgery?
    volvulus - improve CO
  18. what are some complications after correcting DA?
    • Vagal indigestion
    • ↓Lactation
    • Abscess at sx site
  19. If needed, which Abx post DA Sx?
    • Ceftiofure
    • Penn if mastitis
  20. who gets abomasal ulcers and what predisposes them?
    • All ages of cattle
    • Stress
    • ↑Concentrate Diets
    • LSA in older animals
  21. 1st sign of nonperforating ulcer?
    Drop in milk production (esp. after stress of calving)
  22. what mimics perforating ulcer?
    hardware disease
  23. what is most common form of abomasal ulcer?

    What occurs 2'?
    Perforating

    • ⇒lLocal abscesses
    • ⇒Adhesions
    • ⇒Localized peritonitis
  24. C/S of cow with diffuse ulcer present (rare)?
    • Severe signs/shock
    • Widespread peritonitis
  25. What type of ulcer do calves usually get?
    Associated with what deficiency?
    Perforation w/ Peritonitis

    Cu deficiency
  26. CBC findings with ulcer?
    • Leukocytosis w/Neutrophilia
    • ↑Fibrinogen
    • Anemia
  27. What changes should be made if Dx ulcers?
    • Diet: Hay only & No grain
    • Reduce stress
  28. what leads to primary functional obstruction of abomasum?
    What diets known to predispose?
    ↓Fiber or ↓water

    • Overwintering beef cattle
    • Poor quality milk replacer
  29. Contour seen with abomasum impaction?
    • Papple
    • or
    • Bilateral ventral enlargement
    • (Weight loss)
  30. Expected Blood Gas & Chem w/ abomasal impaction?
    • Metabolic alkalosis
    • HypoCl
    • (doesnt happen in all)
  31. Tx for abomasal impaction? 4
    • Fluids + laxatives
    • Terminate pregnancy
    • Metaclopramide in early cases
    • Rumenotomy - back flush contents
  32. Species/breed likely to get abomasal emptying defect?
    C/S?
    suffolk sheep

    • Anorexia
    • Wt loss
    • Abd enlargement
  33. what is chloride level with emptying defect?
    • >100 mEq/L
    • (normal is 30)
  34. Tx for emptying defect?

    Prevention?
    • Sx (rumenotomy or backflush)
    • Metaclopramide

    Hereditary - don't breed

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