Correct Answer: C

Rationale: Elevating the head of the bed to 30-45 degrees is the most appropriate intervention to prevent aspiration in a patient with an NG tube. This position helps reduce the risk of regurgitation and aspiration by promoting the proper flow of contents through the gastrointestinal tract and minimizing the chances of stomach contents entering the airway. Flushing the NG tube with water before each feeding may not directly prevent aspiration. Checking the placement of the NG tube is important but does not specifically address the prevention of aspiration. Providing oral care every 4 hours is essential for maintaining oral hygiene but is not directly related to preventing aspiration in a patient with an NG tube.

Correct Answer: B

Rationale: The most effective intervention in preventing deep vein thrombosis (DVT) in a postoperative patient is to encourage early ambulation and leg exercises. Early ambulation helps promote circulation, preventing stasis and reducing the risk of blood clot formation. Encouraging the patient to drink plenty of fluids (choice A) is important for overall health but is not the most effective intervention for preventing DVT. Administering anticoagulants (choice C) is a valuable intervention in some cases, but it may not be suitable for all postoperative patients. Applying compression stockings (choice D) can help prevent DVT but is generally not as effective as early ambulation and leg exercises in postoperative patients.

Correct Answer: B

Rationale: The correct intervention for a patient receiving a blood transfusion is to monitor the patient for signs of circulatory overload. This is crucial to prevent fluid overload, which can lead to serious complications. Administering antihistamines is not a routine intervention during blood transfusions unless the patient shows signs of an allergic reaction. Ensuring the completion of the blood transfusion within a specific time frame is not as critical as monitoring for circulatory overload. Checking vital signs every 30 minutes is essential, but the specific focus should be on monitoring for signs of circulatory overload.

Correct Answer: D

Rationale: The patient is showing signs of a possible surgical site infection, including redness, purulent drainage, tenderness, elevated temperature, and increased white blood cell count. These symptoms suggest the need for immediate action to address a potential complication. Utilizing SBAR to notify the primary health care provider is crucial as it allows for effective communication of the patient's condition and the need for further assessment and intervention. Reevaluating the temperature and white blood cell count later, checking the solution used for skin preparation, or planning to change the dressing do not address the urgent need for intervention and communication with the healthcare provider.

Correct Answer: C

Rationale: The correct answer is to lock the wheels on the bed and wheelchair. This action helps prevent accidents by stabilizing the equipment during the transfer process. Having the patient use a gait belt for support (choice A) can be helpful but is not directly related to equipment safety. Encouraging the patient to hold onto a walker (choice B) is beneficial for ambulation but does not address the safety of equipment. Asking the patient to transfer independently (choice D) can pose risks, especially for a patient with limited mobility, and may not ensure safety during the transfer.