A 2-year-old previously healthy boy presents to the emergency department (ED) acting sleepier than usual. Yesterday, he was in his usual state of health, but this morning he didn’t wake up at his usual time of 6 am. When his father went to his room at 7 am, the child was lying in bed. He opened his eyes to look at his father, but did not get out of bed. The mother and father deny any trauma, fever, or seizure activity.
The standard for diagnosing pneumonia is a combination of the clinical history, physical examination, and chest x-ray (CXR) findings. However, lung ultrasound (US) has been shown to be a reasonable alternative to CXR in children, and may be an appropriate alternative diagnostic imaging modality in the Emergency Department (ED).