Fluid Status of Outpatients With Dyspnea

INCLUSION CRITERIA

- Shortness of breath as the most prominent presenting symptom

- Age greater ≥ 45

- Willingness, ability, and commitment to participate in the study

EXCLUSION CRITERIA

- Patients with any active implantable medical device

- Patients who are pregnant or lactating

- Patients who have tattoos and or non-intact skin directly under the electrode
position

- Patients who have had past allergic reactions to medical grade adhesives

- Patients that are dialysis dependent

- Patients who have had a lung lobectomy

- Patients in whom the shortness of breath presentation is due to obvious non HF cause
such as acute chest trauma

- Patients who have received nitrates (sub-lingual, topical or IV), diuretics or
vasopressors ≥ 1 hour prior to IMED-4 Recording

- Patients who decline to have their backs photographed with the IMED-4 device in
position

- Patients who are receiving invasive or non-invasive positive airway pressure (PAP)
ventilation prior to or following presentation to the ED (Self presentation or
admission via EMS).

- Severe co-morbidity or poor general physical/mental health that, in the opinion of
the Investigator, will not allow the subject to be a good study candidate (i.e. other
disease processes, mental capacity, substance abuse, incarceration, shortened life
expectancy, etc.)