Difference between revisions of "Cattle Medicine Q&A 11"
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| − | '''A 6-year-old Holstein cow, which calved 36 hr earlier, is presented in sternal recumbency, profoundly depressed, dehydrated, afebrile (38.5°C,101.3°F), with toxic mucous membranes, an elevated heart rate of 96 beats per minute, and an increased respiratory rate (34 breaths per minute). The udder is soft but a pale, serum-like, secretion can be drawn from one quarter.''' | + | '''A 6-year-old Holstein cow, which calved 36 hr earlier, is presented in sternal recumbency, profoundly depressed, dehydrated, afebrile (38.5°C,101.3°F)), with toxic mucous membranes, an elevated heart rate of 96 beats per minute, and an increased respiratory rate (34 breaths per minute). The udder is soft but a pale, serum-like, secretion can be drawn from one quarter.''' |
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Treatment of endotoxic shock (coliform mastitis) includes intravenous injection of a NSAID, repeated 12 hr later. <br><br> | Treatment of endotoxic shock (coliform mastitis) includes intravenous injection of a NSAID, repeated 12 hr later. <br><br> | ||
| − | Hypertonic saline (7.2%) infusion at a dose rate of 5mL/kg (3 L for 600 kg cow) over 5–7 minutes is achieved through a 13-gauge | + | Hypertonic saline (7.2%) infusion at a dose rate of 5mL/kg (3 L for 600 kg cow) over 5–7 minutes is achieved through a 13-gauge 10cm jugular catheter. <br><br> |
Access to 30–60 L of warm water, which may contain electrolytes, must be provided although not all cows drink; some clinicians recommend stomach tubing volumes up to 30–40 L. <br><br> | Access to 30–60 L of warm water, which may contain electrolytes, must be provided although not all cows drink; some clinicians recommend stomach tubing volumes up to 30–40 L. <br><br> | ||
This cow made a full recovery. Mastitis caused by ''Streptococcus uberis'' can present with many of the clinical features of coliform mastitis and it may prove prudent to administer a broad-spectrum antibiotic both parenterally and by intramammary infusion. | This cow made a full recovery. Mastitis caused by ''Streptococcus uberis'' can present with many of the clinical features of coliform mastitis and it may prove prudent to administer a broad-spectrum antibiotic both parenterally and by intramammary infusion. | ||
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|q3=What control measures could be adopted? | |q3=What control measures could be adopted? | ||
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*Teat sealants should be used at drying-off. | *Teat sealants should be used at drying-off. | ||
*Use of J5 ''Escherichia coli'' core antigen vaccine could be considered. | *Use of J5 ''Escherichia coli'' core antigen vaccine could be considered. | ||
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Revision as of 20:51, 5 August 2011
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This question was provided by Manson Publishing as part of the OVAL Project. See more Cattle questions |
A 6-year-old Holstein cow, which calved 36 hr earlier, is presented in sternal recumbency, profoundly depressed, dehydrated, afebrile (38.5°C,101.3°F)), with toxic mucous membranes, an elevated heart rate of 96 beats per minute, and an increased respiratory rate (34 breaths per minute). The udder is soft but a pale, serum-like, secretion can be drawn from one quarter.
| Question | Answer | Article | |
| Which diseases would you consider? (Most likely first.) | The most likely conditions to consider include:
It may prove difficult to rule out the possible contribution of hypocalcaemia and many clinicians would elect to administer 400 mL of 40% calcium borogluconate slowly by the intravenous route while monitoring the heart rate. |
Link to Article | |
| What treatments would you administer? | Treatment of endotoxic shock (coliform mastitis) includes intravenous injection of a NSAID, repeated 12 hr later. |
[[|Link to Article]] | |
| What control measures could be adopted? |
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[[|Link to Article]] | |
