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.
How to tell if your baby has an ear infection. The easiest way to tell if your baby might have an ear infection (or any other illness, for that matter) is by observing a change in his mood. If your baby turns fussy, or starts crying more than usual, be on the lookout for a problem.