title: My doctors have been trying to figure out if the cause of my shortness of breath is heart failure or something else. I recently read that there is a blood test that can tell for sure if someone has heart failure. Is that true?
mesh_terms: D015415:Biomarkers / Q000097:blood; D004417:Dyspnea / Q000209:etiology*; D006333:Heart Failure / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D020097:Natriuretic Peptide, Brain / Q000097:blood*
chemical_list: D015415:Biomarkers; D020097:Natriuretic Peptide, Brain