Contraindicated means that the medication should not be taken as it can aggravate the condition of the patient. In this case, the answers are A and D. A should not be taken because it can cause the upper GI tract to become inflamed which can then further cause complications with the patient’s gastritis.
Furosemide, on the other hand, is another medication that should be taken by people who need to prevent their bodies from taking in salt. This can be used by people who are suffering from fluid retention but this should not be taken by people who are suffering from different conditions such as liver disease or kidney disorder.
Naproxen sodium is a nonsteroidal anti-inflammatory drug that can cause inflammation of the upper GI tract. For this reason, it is contraindicated in a patient with gastritis. Calcium carbonate is used as an antacid for the relief of indigestion and is not contraindicated. Clarithromycin is an antibacterial often used for the treatment of Helicobacter pylori in gastritis. Furosemide is a loop diuretic and is contraindicated in a patient with gastritis.