Clinical Criteria for the Diagnosis of Acute Bacterial Sinusitis

Acute bacterial sinusitis in children is diagnosed on the basis of the history, with the use of the criteria. Imaging studies (plain-film radiography, computed tomography [CT], magnetic resonance imaging [MRI], and ultrasonography) show signs of sinus inflammation but are not recommended in patients with uncomplicated infection, given the low specificity of these studies.
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Rochester Criteria for Identifying Febrile Infants at Low Risk for Serious Bacterial Infection

The Rochester criteria were developed to identify febrile infants aged 60 days or younger at low-risk of bacterial infection and do not include cerebrospinal fluid (CSF) testing.
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Diagnosis of Spontaneous Bacterial Peritonitis (SBP)

Indications for diagnostic paracentesis.

  • Cirrhotic patients with ascites at admission

  • Cirrhotic patients with ascites and signs or symptoms of infection: fever, leukocytosis, abdominal pain

  • Cirrhotic patients with ascites who present with a clinical condition that is deteriorating during hospitalization: renal function impairment, hepatic encephalopathy, gastrointestinal bleeding

  • Patients with new-onset ascites

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