Exertional dyspnea (most common symptom)
Consider in undifferentiated patients with dyspnea, fatigue, syncope (late PH finding), chest pain, palpitations, lower extremity edema
JVD
Hepatomegaly
Ascites
Edema
Stigmata of liver failure
Pulmonary hypertension 
Airway obstruction
Bronchopulmonary dysplasia
Anaphylaxis
Empyema
Angioedema
Pneumoconiosis
Aspirated foreign body