3. The right ventricle then pumps blood through the pulmonary artery into the lungs. 4. In the lungs, tiny blood vessels called capillaries absorb carbon diox-ide from the blood and replace it with oxygen. 5. Oxygenated blood then flows through the pulmonary vein and into the left atrium. 6.
Summary of Life-threatening constipation .. An 80-year-old woman presented to the emergency department with sudden onset abdominal pain and vomiting. Her abdomen was soft with umbilical tenderness.
Choking Can Be an Emergency. Sometimes, an object can get into the trachea and completely block the airway. If airflow into and out of the lungs is blocked and the brain is deprived of oxygen, choking can become a life-threatening emergency.