Spontaneous bacterial peritonitis laboratory findings: Difference between revisions
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* Absoulte neutrophil count - a total count of >250 cells/mm<sup>3</sup> along with positive cultures confirm the diagnosis of spontaneous bacterial peritonitis. | * Absoulte neutrophil count - a total count of >250 cells/mm<sup>3</sup> along with positive cultures confirm the diagnosis of spontaneous bacterial peritonitis. | ||
* Albumin concentration - it is important for the calculation of [[serum-ascites albumin gradient]] , this helps us in identifying the [[portal hypertension]] and prognosis. | * Albumin concentration - it is important for the calculation of [[serum-ascites albumin gradient]] , this helps us in identifying the [[portal hypertension]] and prognosis. | ||
* Protein concentration - low protein concentration is noticed in cases of spontaneous bacterial peritonitis which differentiates it from secondary bacterial peritonitis where it is normal. | |||
==References== | ==References== | ||
Revision as of 14:58, 1 August 2012
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Spontaneous bacterial peritonitis Microchapters |
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Differentiating Spontaneous bacterial peritonitis from other Diseases |
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Diagnosis |
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Treatment |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]
Overview
Diagnosis necessitates paracentesis (needle drainage of the ascitic fluid) and laboratory confirmation of ascitic neutrophils > 250/mm3.
Laboratory Findings
Laboratory tests, most importantly ascitic fluid analysis is required for confirmation of diagnosis of spontaneous bacterial peritonitis.
- Complete blood count and differential count are tested to confirm infection.
- Serum electrolytes , creatinine to asses the renal function.
- Liver function tests are to performed for evaluation of cirrhosis.
- Blood cultures may be useful in sepsis
- Urine culture to rule out asymptomatic bacteruria
Ascitic Fluid Analysis
- Absoulte neutrophil count - a total count of >250 cells/mm3 along with positive cultures confirm the diagnosis of spontaneous bacterial peritonitis.
- Albumin concentration - it is important for the calculation of serum-ascites albumin gradient , this helps us in identifying the portal hypertension and prognosis.
- Protein concentration - low protein concentration is noticed in cases of spontaneous bacterial peritonitis which differentiates it from secondary bacterial peritonitis where it is normal.