Clinical Value of FeNO for Pulmonary Hypertension Diagnosis in Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease

Figure 2

Relationship between FeNO vs. BNP, CRP, and PASP in AECOPD patients with or without HP. (a) Relationship between FeNO and CRP in AECOPD patients. (b) Relationship between FeNO and BNP in AECOPD patients. (c) Relationship between FeNO and CRP in AECOPD + PH patients. (d) Relationship between FeNO and BNP in AECOPD + PH patients. (e) Relationship between FeNO and PASP in AECOPD + PH patients. FENO, fractional exhaled nitric oxide; PH, pulmonary hypertension; BNP, brain natriuretic peptide; CRP, C-reactive protein; PASP, pulmonary arterial systolic pressure.

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