Cardiovascular findings are usually notable for S3, accentuation of the pulmonic component of S2, and jugular venous distention. Auscultation of murmurs can help in the diagnosis of acute valvular disorders manifesting with pulmonary edema.
Aortic stenosis is associated with a harsh crescendo-decrescendo systolic murmur, which is heard best at the upper sternal border and radiating to the carotid arteries. In contrast, acute aortic regurgitation is associated with a short, soft diastolic murmur.
Acute mitral regurgitation produces a loud systolic murmur heard best at the apex or lower sternal border. In the setting of ischemic heart disease, this may be a sign of acute MI with rupture of mitral valve chordae. (See the image below.)

Mitral stenosis typically produces a loud S1, opening snap, and diastolic rumble at the cardiac apex.
Another notable physical finding is skin pallor or mottling resulting from peripheral vasoconstriction, low cardiac output, and shunting of blood to the central circulation in patients with poor LV function and substantially increased sympathetic tone. Skin mottling at presentation is an independent predictor of an increased risk of in-hospital mortality.
Patients with concurrent right ventricular (RV) failure may present with hepatomegaly, hepatojugular reflux, and peripheral edema.
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Radiograph shows acute pulmonary edema in a patient who was admitted with acute anterior myocardial infarction. Findings are vascular redistribution, indistinct hila, and alveolar infiltrates.
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Radiograph shows acute pulmonary edema in a patient known to have ischemic cardiomyopathy. Findings are Kerley B lines (1mm thick and 1cm long) in the lower lobes and Kerley A lines in the upper lobes.
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Radiograph demonstrates cardiomegaly, bilateral pleural effusions, and alveolar opacities in a patient with pulmonary edema.
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Radiograph shows interstitial pulmonary edema, cardiomegaly, and left pleural effusion presenting at an earlier stage of pulmonary edema.
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Lateral chest radiograph shows prominent interstitial edema and pleural effusions.