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.
Many children get ear infections. The infections are usually in the middle ear behind the eardrum. They may be caused by bacteria or by a virus. Doctors often treat bacterial infections with antibiotics. Antibiotics are strong medicines that kill bacteria. Infants and some babies and children do need antibiotics. But using antibiotics too often can be harmful. Hereâs why: In most cases, antibiotics are not needed.. 1  They do not work for ear infections caused by viruses. 2  They do not help the pain. 3  Usually, viral infections and many bacterial infections go away on their own in two to three days, especially in children who are over two years old.