Correct Answer: B

Rationale: To ensure proper functioning of a chest tube, the nurse should keep the drainage system below chest level. This position allows for proper drainage by gravity and prevents backflow into the pleural space. Clamping the chest tube intermittently can lead to a buildup of pressure and should be avoided. Emptying the drainage chamber every 4 hours is important but not directly related to maintaining the chest tube's function. Applying sterile gauze around the insertion site daily is essential for infection prevention but does not specifically ensure the proper functioning of the chest tube.

Correct Answer: B

Rationale: The correct instruction the nurse should provide to a client prescribed ferrous sulfate is to take it with fluids other than coffee or tea. Coffee and tea can inhibit iron absorption. Therefore, choices A, C, and D are incorrect. Avoiding strawberries, citrus fruits, and melon is not necessary for improving absorption of ferrous sulfate, taking it on a full stomach is not recommended, and doubling the dose if a dose is missed can lead to an overdose.

Correct Answer: B

Rationale: The correct answer is B. Radiating pain, especially to the left arm, is a classic sign of myocardial infarction. Pain that radiates to the left arm indicates cardiac involvement, making it a significant finding. Choices A, C, and D are incorrect because chest pain that improves with rest, worsens with deep breathing, or is relieved by antacids is less likely to be associated with a myocardial infarction.

Correct Answer: B

Rationale: Monitoring oxygen saturation levels is the most important intervention in this scenario. It ensures that the client is receiving adequate oxygenation, which is crucial for a client with pneumonia. By monitoring saturation levels, the nurse can promptly identify any oxygenation issues and adjust the oxygen delivery if necessary. Encouraging fluid intake, changing oxygen tubing daily, and assisting with frequent position changes are also important aspects of care for a client with pneumonia, but they are not as critical as monitoring oxygen saturation levels in ensuring immediate respiratory support.

Correct Answer: C

Rationale: Oatmeal is an excellent recommendation for clients with osteoporosis due to its richness in fiber and nutrients, making it a heart-healthy and bone-friendly choice. Fried chicken (Choice A) is high in unhealthy fats and lacks the nutrients needed for bone health. Whole milk (Choice B) contains calcium but can be high in saturated fats, which may not be the best choice for individuals with osteoporosis. Bacon (Choice D) is high in saturated fats and sodium, which can have negative effects on bone health and overall well-being.