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.
When to go: For an emergency that seems life-threatening: chest pain, difficulty breathing, severe bleeding, head traumas, or poisoning, for example. If you need quick care but it's not a dire emergency, consider one of the other options above.