The portable AP chest radiograph shows post-sternotomy changes, mild cardiomegaly, and indistinct pulmonary vasculature suggestive of mild interstitial pulmonary edema. The right costophrenic angle is indistinct, which may indicate a small right-sided pleural effusion. A PA and lateral chest radiograph are recommended for better evaluation.
Simple pleural effusion (Uncertain) Cardiomegaly (Present) Edema (Uncertain)