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.
Identifying an Ear Infection. 1  1. Know who is most at risk for an ear infection. In general, children are more likely to get ear infections than adults. 2  2. Recognize the symptoms of a middle ear infection. A middle ear infection (acute otitis media) is the most common type of ear infection and is caused by a virus or bacteria.