A patient with a pulmonary arteriovenous fistula (PAVF) may present with a number of clinical and laboratory findings.


Clinical findings:

(1) fatigue

(2) dyspnea

(3) chest pain

(4) hemoptysis

(5) syncope


Findings on physical exam:

(1) bruit on chest auscultation

(2) cyanosis

(3) digital clubbing


Laboratory findings:

(1) polycythemia (if chronic)

(2) hypoxemia that does not improve with administration of oxygen at an FIO2 1.0.


To read more or access our algorithms and calculators, please log in or register.