Chest X-ray findings suggested pulmonary edema. However, a CT pulmonary angiogram was performed to rule out pulmonary embolism due to a raised D-dimer of 3081 ng/mL. CT findings confirmed non-cardiogenic pulmonary edema, and given the patient’s presentation, a final diagnosis of near-drowning pulmonary edema was achieved.

The patient’s clinical status dramatically improved in the next 24 hours without needing supplementary oxygen. Antibiotics were administered to cover potential superimposed infection due to aspiration. The patient was finally discharged asymptomatically one day later.