Correct!
3. Obtain CT angiogram of the chest

The patient is requiring 2L/min of oxygen to maintain saturations, dyspneic, tachycardic, has a normal chest x-ray and a recent prostatectomy. This should suggest a diagnosis. A CT angiogram of the chest is the procedure of choice to pursue this diagnosis and is shown in Figure 2.

Figure 2. Selected static images from the CT angiogram showing lung windows (A-C) and soft tissue windows (D-F). Movies of lung windows (lower left) and soft tissue windows (lower right).

Which of the following statements best describes the CT findings?

1. Bilateral basal ground-glass opacity and reticulation, suggesting non-infectious alveolitis with fibrosis
2. Bilateral basal low attenuation consistent with pulmonary parenchymal fat
3. Massive pulmonary embolus
4. Non-specific bilateral basal consolidation and adds little to what is already known from chest radiography
5. Patent ductus arteriosus

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