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I’d like to increase my hours at my job from part-time to full-time when my son starts middle school. He’d be home by himself for an hour and a half between the end of his afterschool program and the time I’d be back from work. Do you think he’s old enough to be home alone for that time?

"Don’t post information about yourself online that you don’t want the whole world to know." In the 21st century, this safety rule is as important as the older “don’t talk to strangers” and “look both ways before crossing the street.” If you remember nothing else about Internet safety, remember this.

A 2-year-old girl was transferred to the pediatric ICU from a nearby community hospital because of nonremitting, generalized abdominal pain associated with fever and vomiting. Her symptoms had begun 3 days earlier and had progressively worsened despite treatment with antibiotics, pain medication, and fluids.

“Texting,” “tweeting,” “friending,” “IMing.” Many physicians have heard their teenaged patients use these terms to describe how they communicate with their peers.

A 20-month-old boy brought to the emergency department with swelling on the right side of the neck and fever (temperature, 39.3°C [102.7°F]) of 1 day’s duration. The parents reported that the child had had intermittent fevers and poor weight gain for the past 3 months but no vomiting, diarrhea, rash, drooling, or difficulty in swallowing.

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