Fluid and electrolyte balance is maintained through the process of fluid and solutes moving in and out of cells. What specific process allows fluid to pass through a membrane from a dilute to a more concentrated area?

Choice A reason: MRI is not a diagnostic procedure for Barrett esophagus. MRI is a type of imaging test that uses magnetic fields and radio waves to create detailed pictures of the internal organs and tissues. It is mainly used to diagnose problems in the brain, spine, joints, and blood vessels.

Choice B reason: EGD is a diagnostic procedure for Barrett esophagus. EGD is a type of endoscopy that uses a flexible tube with a light and a camera to examine the esophagus, stomach, and duodenum. It can detect changes in the lining of the esophagus that may indicate Barrett esophagus, a condition where the normal squamous cells are replaced by columnar cells due to chronic acid exposure.

Choice C reason: Colonoscopy is not a diagnostic procedure for Barrett esophagus. Colonoscopy is a type of endoscopy that uses a flexible tube with a light and a camera to examine the colon and rectum. It is mainly used to screen for colorectal cancer and polyps, as well as to diagnose inflammatory bowel disease and other conditions affecting the lower gastrointestinal tract.

Choice D reason: CT scan is not a diagnostic procedure for Barrett esophagus. CT scan is a type of imaging test that uses X-rays and a computer to create cross-sectional pictures of the body. It is mainly used to diagnose problems in the chest, abdomen, pelvis, and bones.

Choice A reason: Reintroducing foods that intensify symptoms one at a time is not an intervention that the nurse would recommend for a client with GERD. Foods that can trigger or worsen GERD symptoms include spicy, acidic, fatty, or fried foods, chocolate, coffee, alcohol, mint, garlic, and onion. The nurse would advise the client to avoid or limit these foods, not to reintroduce them.

Choice B reason: Promoting intake of food and fluids 1 to 2 hours before bedtime is not an intervention that the nurse would recommend for a client with GERD. Eating or drinking close to bedtime can increase the risk of acid reflux, as the stomach contents can flow back into the esophagus when the client lies down. The nurse would suggest the client to have smaller and more frequent meals, and to avoid eating or drinking at least 3 hours before bedtime.

Choice C reason: Maintaining an upright position following meals is an intervention that the nurse would recommend for a client with GERD. Keeping an upright posture can help prevent or reduce acid reflux, as gravity can help keep the stomach contents in place. The nurse would encourage the client to avoid bending, stooping, or lying down for at least 2 hours after eating.

Choice D reason: Increasing the amount of carbonated beverages is not an intervention that the nurse would recommend for a client with GERD. Carbonated beverages can increase the production of gas and stomach acid, which can cause bloating, belching, and acid reflux. The nurse would advise the client to drink water or other non-carbonated fluids, and to avoid drinking through a straw or chewing gum, which can also introduce air into the stomach.