Difference between revisions of "Small Animal Emergency and Critical Care Medicine Q&A 21"
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Evidence of petechiae. | Evidence of petechiae. | ||
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|q2=Abnormalitites of which part of the coagulation system will result in these clinical signs? | |q2=Abnormalitites of which part of the coagulation system will result in these clinical signs? | ||
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The presence of petechiae suggests the presence of either a vascular or platelet abnormality (vasculitis, thrombocytopenia, thrombopathia). | The presence of petechiae suggests the presence of either a vascular or platelet abnormality (vasculitis, thrombocytopenia, thrombopathia). | ||
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|q3=Is the platelet count low enough to result in clinical signs of spontaneous hemorrhage? | |q3=Is the platelet count low enough to result in clinical signs of spontaneous hemorrhage? | ||
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Spontaneous hemorrhage, however, does not usually occur until the platelet count is less than 20,000/μl. | Spontaneous hemorrhage, however, does not usually occur until the platelet count is less than 20,000/μl. | ||
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|q4=Name four categories for the etiology of the coagulation abnormality. List one example for each cause. | |q4=Name four categories for the etiology of the coagulation abnormality. List one example for each cause. | ||
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*sequestration (liver/spleen disease) | *sequestration (liver/spleen disease) | ||
*destruction (immune-mediated disease) | *destruction (immune-mediated disease) | ||
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</FlashCard> | </FlashCard> | ||
Revision as of 17:42, 30 September 2011
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This question was provided by Manson Publishing as part of the OVAL Project. See more Small Animal Emergency and Critical Care Medicine Q&A. |
This five-year-old, female Cocker Spaniel presented for evaluation of decreased appetite. PCV – 38%; TS – 6.8 gm/dl; ACT – 90 seconds; platelet count – 65,000/μl.
| Question | Answer | Article | |
| What abnormality is seen here? | Evidence of petechiae. |
[[|Link to Article]] | |
| Abnormalitites of which part of the coagulation system will result in these clinical signs? | The presence of petechiae suggests the presence of either a vascular or platelet abnormality (vasculitis, thrombocytopenia, thrombopathia). |
[[|Link to Article]] | |
| Is the platelet count low enough to result in clinical signs of spontaneous hemorrhage? | No. If the platelet count is less than 40,000/μl, the animal may have a bleeding tendency. Spontaneous hemorrhage, however, does not usually occur until the platelet count is less than 20,000/μl. |
[[|Link to Article]] | |
| Name four categories for the etiology of the coagulation abnormality. List one example for each cause. | Causes of thrombocytopenia are:
|
[[ |Link to Article]] | |
