A patient with PUD presents with a sudden onset of severe abdominal pain, vomiting, and signs of peritonitis. What is the nurse's priority action?

Correct Answer: B

Rationale: The correct answer is B: Notify the physician immediately. This is the priority action because the patient is showing signs of a perforated peptic ulcer, a medical emergency that requires immediate surgical intervention to prevent complications like sepsis. Contacting the physician promptly allows for quick decision-making and coordination of emergency surgery. Administering pain medication (A) can mask symptoms and delay proper diagnosis and treatment. Emergency surgery (C) is necessary, but physician notification should come first. Inserting a nasogastric tube (D) may be indicated later for decompression, but it is not the immediate priority in this critical situation.

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.

Correct Answer: B

Rationale: The correct answer is B: Kidneys. The kidneys do not manufacture digestive juices. The liver produces bile to aid in digestion, the stomach produces gastric juices, and the pancreas produces digestive enzymes. The kidneys, however, are responsible for filtering blood, regulating fluid balance, and producing urine, not digestive juices. Therefore, option B is the correct answer.