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

Figure 1

(a) FeNO and (b) PASP levels in patients with mild, moderate, or severe PH in the AECOPD + PH group. FENO, fractional exhaled nitric oxide; PH, pulmonary hypertension; PASP, pulmonary arterial systolic pressure.

(a)

(b)