A nurse is reinforcing teaching for a client who has a duodenal ulcer and a new prescription for sucralfate. The client asks the nurse how sucralfate works. Which of the following statements should the nurse make?

Correct Answer: A

Rationale: Sucralfate works by forming a protective barrier over the ulcer site. It adheres to the ulcer, shielding it from the harmful effects of gastric acid, pepsin, and bile salts. This protection allows the ulcer to heal by preventing further irritation and damage.

Correct Answer: C

Rationale: In a client with pneumonia, the primary indication for oxygen therapy is to improve oxygen delivery to tissues and alleviate hypoxia.

Correct Answer: C

Rationale: CPAP mask provides positive pressure throughout the respiratory cycle, including expiration, and is effective in delivering the necessary PEEP in clients with ARDS.

Correct Answer: D

Rationale: When using a face mask for oxygen therapy, the nurse should assess the client's skin for any signs of irritation or breakdown due to prolonged mask use. It is important to ensure proper mask fit and periodically assess the skin integrity to prevent pressure ulcers or skin breakdown.

Correct Answer: B

Rationale: The nurse should adjust the oxygen flow rate on the Venturi mask according to the prescribed percentage of inspired oxygen (FiO2). The specific flow rate and FiO2 will be specified in the healthcare provider's orders.