Breath Test to Assess Hepatic Metabolic Reserve and to Predict Hepatic Decompensation in Cirrhotics

The three objectives of this trial are: 1. To demonstrate that a decline in hepatic metabolic function as measured by BreathID will correlate with changes in CTP and MELD scores in patients with cirrhosis. 2. To determine the critical value of hepatic metabolic function as measured by BreathID will predict which patients are at risk to develop complications of cirrhosis. 3. To determine the critical value of hepatic metabolic function as measured by BreathID will predict which patients are at risk for liver related mortality. The hypothesis is that the BreathID breath test will correlate to CTP and MELD scores, and that thresholds can be established that will help predict risk of complications of cirrhosis and mortality.