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.
1 Most cases of constipation are successfully treated by eating a diet high in fibre, drinking more fluids and exercising daily. 2  Complications of chronic constipation include haemorrhoids, faecal impaction and rectal prolapse.  Over-the-counter laxatives are fine in the short term, but seek advice if the problem persists.