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Quiz: Congenital Portosystemic Shunts

Clinician's Brief

Internal Medicine

|May 2017|Web-Exclusive

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6  Questions
Multiple Choice Questions
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Quiz: Congenital Portosystemic Shunts

This quiz reviews clinical signs, diagnostic testing, medical and surgical options, and complications associated with congenital portosystemic shunts (PSS).

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Which of the following signs are most frequently found in young dogs presenting with congenital portosystemic vascular anomaly (PSVA)? Choose 2 answers.

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Quiz: Congenital Portosystemic Shunts
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A patient is suspected of having a congenital portosystemic shunt (PSS).

Which of the following findings is likely to be abnormal on serum chemistry profile?

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Quiz: Congenital Portosystemic Shunts
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Based on results of serum chemistry testing, the index of suspicion for congenital PSS in a 6-month-old female Yorkshire terrier is increasing. Total serum bile acids (TSBA) testing is ordered to help confirm the diagnosis.  

Which of the following statements regarding TSBA testing is false?

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Quiz: Congenital Portosystemic Shunts
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Dogs with congenital PSS often present with clinical signs secondary to hyperammonemia, including hepatic encephalopathy, lower urinary tract signs, and GI signs. 

Which of the following might be a component of medical management in patients with congenital PSS?  

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Quiz: Congenital Portosystemic Shunts
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Which of the following statements regarding use of interventional radiology (IR) to address congenital intrahepatic PSS is false?

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Quiz: Congenital Portosystemic Shunts
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A 6-year-old, 10-kg castrated miniature schnauzer was presented for stranguria and hematuria. Diagnostic testing revealed an anomalous hepatic vessel and urinary calculi on ultrasonography, abnormal TSBA, and ammonium biurate crystaluria. Transplenic portal scintigraphy demonstrated portosystemic shunting. A diagnosis of a congenital extrahepatic PSS was made. 

Following medical management of concurrent Escherichia coli urinary tract infection and mild hepatic encephalopathy, the shunt was surgically attenuated with placement of an ameroid constrictor. Cystotomy was also performed and multiple small bladder stones removed. The perioperative period was uneventful.  

What approximate incidence of postligation neurological syndrome (PLNS) occurs in dogs following attenuation of congenital PSS? 

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Quiz: Congenital Portosystemic Shunts
6/6  Questions
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Quiz: Congenital Portosystemic Shunts

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