Gas Exchange for Predicting Hospital Heart Failure Readmissions

Exclusion Criteria

• •The subject is pregnant (verified in a manner consistent with institution's standard of care)
• •Subject is currently participating in another investigational device or drug trial
• •Subject is a prisoner, a minor or unable to adequately give informed consent due to mental or physical condition
• •Subject is unwilling or unable to return for the required follow-up after test
• •Subject has Left Ventricular Assist Device (LVAD)
• •Subject is listed for transplant
• •Subject has a clinical diagnosis of acute myocardial infarction (AMI) on admission (Note: If troponin measurements have been collected and are elevated but not due to an MI subject is still eligible for study)
• •Subject has a pulmonary embolism (PE) on admission
• •Subject is dialysis dependent
• •Subject has a cardiac resynchronization device (CRT) which has been re-programmed at any time during the study
• •Subject has Chronic Obstructive Pulmonary Disease (COPD) who is oxygen or steroid dependent
• •Subject has severe hypertension \> 180 millimeter of mercury (mmHg) resting systolic at time of test
• •Subject has severe heart failure with renal insufficiency (with Creatinine clearance rate (CrCL) of 30 or less) and/or on IV Inotropic therapy and/or enrolling in hospice