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Venous Ammonia: Sensitivity and Specificity

Introduction: None written. Excerpt from the entry in Hepatic Encephalopathy:
ammonia > upper limit of normal. in cirrhotics

Note that in this study, all patients with acute liver failure had ammonia levels > upper limit of normal. However, ammonia levels did correlate with grade of HE (r=.91).

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Associated Diagnoses:

Hepatic Encephalopathy

37.5% sensitive, 67.3% specific