Hypoxia, or lack of sufficient oxygen, is the single most common cause of cellular injury (see Figure 2-8). The other options are not a commonly observed as is the correct option. PTS: 1 REF: Page 56 31. During cell injury caused by hypoxia, sodium and water move into the cell because: a.
Boys develop ear infections more often than girls, as do kids with a family history of ear infections. They're also more common during the winter season, when lots of people get upper respiratory tract infections or colds.
If you suspect your child has an ear infection, you should call the doctorâs office and describe the symptoms. Usually, your doctor should ask you to wait a few days before bringing your child in. The main sign of an ear infection is pain, especially on the first day.