Final answer:
An ulcer refers to an observable pressure-related alteration of intact skin. Examples include peptic ulcers in the stomach or duodenum and bedsores caused by prolonged pressure on bony areas. Peptic ulcers can cause abdominal pain and are treated with antibiotics and medications. Bedsores can be prevented through repositioning and removal of necrotized tissue.
Step-by-step explanation:
An ulcer refers to an observable pressure-related alteration of intact skin. In medical terms, ulcers can have different classifications depending on the specific location and characteristics. For example, a peptic ulcer is a sore in the lining of the stomach or duodenum, while bedsores or decubiti's ulcers are caused by prolonged pressure on bony areas of the body.
Peptic ulcers, specifically gastric and duodenal ulcers, are common and can cause abdominal pain, weight loss, and other symptoms. They are usually diagnosed based on symptoms, presence of Helicobacter pylori bacteria, or through endoscopy. Treatment may involve antibiotics, medications to decrease stomach acid, and in severe cases, surgery may be required.
Bedsores, on the other hand, are most commonly observed in immobile elderly patients due to constant pressure on certain body parts. Regular repositioning and necrotized tissue removal are important in preventing complications like infection.