A patient with PUD is prescribed a combination of antibiotics and a proton pump inhibitor (PPI). The nurse knows that the rationale for this therapy is:

Correct Answer: C

Rationale: This combination targets H. pylori eradication (antibiotics) and acid reduction (PPI) to heal ulcers and prevent recurrence.

Correct Answer: C

Rationale: PPIs reduce acid production, aiding ulcer healing.

Correct Answer: B

Rationale: Acute gastritis typically presents with nausea, vomiting, and epigastric pain, often exacerbated by eating, due to irritation of the stomach lining. Black, tarry stools suggest upper GI bleeding, which may complicate gastritis but isn't a primary symptom. Severe weight loss and diarrhea are more indicative of chronic conditions like malignancy or malabsorption. Difficulty swallowing and cough relate more to esophageal issues like GERD.

Correct Answer: A

Rationale: After proton pump inhibitor and antibiotic therapy it is best to wait a month before repeat endoscopy for gastric biopsy and urease testing. The same is true of the urea breath test which is a convenient noninvasive alternative. A urease test at the time of haematemesis will usually be negative. Even after definite eradication of Helicobacter pylori, serology will remain positive for months. ELISA testing would confirm a true positive urease test.

Correct Answer: B

Rationale: The digestive system processes organic molecules (carbohydrates, proteins, fats) into smaller units that can be absorbed and enter cells for energy, growth, or repair. Waste removal is excretory. Glucose breakdown occurs in cells, not digestion. Amino acid conversion is synthetic, not digestive.