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.
The most common symptom of an ear infection is pain. Of course, babies are too young to explain when something hurts. However, they may tug or scratch at the infected ear. They also may have other symptoms, such as crying, crankiness, hearing problems, fever, vomiting, and drainage from the ear.