Figure 2From: Diagnostic value of gas exchange tests in patients with clinical suspicion of pulmonary embolismBox-whiskers plots of (a) alveolar-arterial partialpressure of oxygen [P(A–a)O2] gradient, (b) arterial partialpressure of oxygen (PaO2) and (c) arterial partial pressureof carbon dioxide (PaCO2) in patients with and without pulmonaryembolism (PE), who had or did not have prior cardiopulmonary disease (CPD).Back to article page