The nurse is explaining to a patient the purpose of certain lab tests that have been ordered.
A carcinoembryonic antigen (CEA) test was ordered and the patient is asking what this value will indicate. Which of the following is correct?

Choice A rationale
Consuming large meals can exacerbate GERD symptoms. Smaller, more frequent meals are recommended to reduce the volume of food in the stomach at any one time, thereby reducing the pressure on the lower esophageal sphincter.
Choice B rationale
Identifying and avoiding foods that cause discomfort is a key strategy in managing GERD. Foods that commonly trigger GERD symptoms include fatty foods, spicy foods, acidic foods, and caffeine.
Choice C rationale

Using pillows to elevate the head and upper body during sleep can help prevent nighttime GERD symptoms. Gravity helps keep stomach acid in the stomach, reducing the chance of it flowing back into the esophagus.
Choice D rationale
Lying down after a meal can exacerbate GERD symptoms. It is recommended to wait at least three hours after eating before lying down.

Choice A rationale
Surgery to increase mucus will not heal the ulcerations. Peptic ulcers are caused by an imbalance between the digestive fluids hydrochloric acid and pepsin, and the body’s ability to protect itself from these substances. The stomach and the duodenum have some protection from these acids, but if this protection is decreased, or the production of acids and pepsin is increased, an ulcer can form.
Choice B rationale
A common cause of peptic ulcer disease is an infection from Helicobacter pylori (H. pylori).
H. pylori is a bacterium that can damage the protective lining of your stomach and small intestine. This can lead to inflammation and ulcers.

Choice C rationale
Gastric ulcers do not occur more frequently than peptic ulcers. In fact, peptic ulcers include both gastric ulcers, which form on the lining of the stomach, and duodenal ulcers, which form on the lining of the upper part of the small intestine.
Choice D rationale
Erosion is not confined to the stomach and esophagus in peptic ulcer disease. Peptic ulcers can occur in the stomach and the duodenum, and less commonly, the lower esophagus.