A patient with PUD is prescribed a combination therapy of amoxicillin, clarithromycin, and a PPI. The nurse understands that this regimen is intended to:

Correct Answer: C

Rationale: The correct answer is C: Eradicate H. pylori and reduce acid secretion. This combination therapy is commonly used to treat peptic ulcer disease caused by H. pylori infection. Amoxicillin and clarithromycin target and eradicate the H. pylori bacteria, while the PPI helps reduce acid secretion to promote ulcer healing. Choice A is incorrect because the regimen is focused on treating existing ulcers rather than preventing new ones. Choice B is incorrect because the primary goal of the therapy is not just pain relief but rather treating the underlying cause of the ulcers. Choice D is incorrect because the therapy does not directly promote healing by increasing mucus production but rather by targeting H. pylori and reducing acid secretion.

Correct Answer: B

Rationale: The correct answer is B: Endoscopy with biopsy. This is the most commonly used test to confirm gastritis as it allows direct visualization of the stomach lining and collection of tissue samples for biopsy. Barium swallow (A) is used to diagnose structural abnormalities, not gastritis. Abdominal ultrasound (C) is more useful for evaluating organs like the liver and gallbladder. Stool culture (D) is used to identify bacterial infections in the stool, not diagnose gastritis.

Correct Answer: B

Rationale: The correct answer is B: Co-trimoxazole. Co-trimoxazole is primarily eliminated through the kidneys and does not have prominent hepatic or gastrointestinal effects in overdose. In contrast, A (Co-phenotrope), C (Co-proxamol), and D (Co-codamol) can cause significant hepatic and gastrointestinal effects in overdose due to the presence of opioids or paracetamol. Co-phenotrope contains diphenoxylate (an opioid), Co-proxamol contains dextropropoxyphene (an opioid), and Co-codamol contains codeine and paracetamol. Therefore, B is the correct answer as it does not apply to drugs with significant hepatic and gastrointestinal effects in overdose.

Correct Answer: A

Rationale: The correct answer is A (digestive and circulatory). The digestive system breaks down food into molecules like fatty acids, which are needed for fat synthesis. The circulatory system then transports these molecules to cells for fat synthesis. The other choices are incorrect because the excretory system is involved in waste removal, the immune system defends against pathogens, the muscular system supports movement, and the reproductive system is responsible for reproduction, none of which are directly related to providing molecules for fat synthesis.

Correct Answer: C

Rationale: The correct answer is C: The body's food-processing system. The digestive system is responsible for processing and breaking down food into nutrients that can be absorbed by the body. This process involves various organs such as the stomach, intestines, and liver. It is not the body's breathing system (A), nervous system (B), or blood-transporting system (D) because those systems have different functions and are not directly involved in food processing.