Correct Answer: D

Rationale: Shaking the NPH insulin bottle hard can cause air bubbles and affect dosing accuracy; it should be rolled gently instead.

Correct Answer: B

Rationale: In right-sided congestive heart failure, the nurse would anticipate finding jugular vein distention. This occurs due to increased venous pressure, leading to the distention of the jugular veins in the neck. Choices A, C, and D are incorrect. Decreased urinary output is not typically associated with right-sided heart failure; pleural effusion and bibasilar crackles are more commonly seen in conditions like left-sided heart failure.

Correct Answer: B

Rationale: Effective pain management encourages deep breathing and coughing, which are crucial for preventing complications after thoracic surgery. These actions help prevent respiratory complications such as pneumonia and atelectasis, promote lung expansion, and improve oxygenation. While relaxation and sleep are important for recovery, the priority after a thoracotomy and lobectomy is to prevent respiratory issues. Incisional healing is important but not the primary focus immediately post-surgery. Range of motion exercises are not directly related to promoting recovery after thoracic surgery.

Correct Answer: C

Rationale: Dyspnea indicates a potential complication such as pneumothorax or incorrect catheter placement, requiring immediate attention. Pallor may indicate anemia but is not as urgent as dyspnea in this context. Increased temperature could be a sign of infection but is not as critical as respiratory distress. Involuntary muscle spasms are not directly related to central venous catheter placement and are of lower priority compared to respiratory issues.

Correct Answer: B

Rationale: The correct answer is B: Soybean oil. Soybean oil is a good source of omega-3 fatty acids, which are beneficial for heart health. Blueberries (choice A), citrus fruits (choice C), and green tea (choice D) are not significant sources of omega-3 fatty acids. Blueberries are rich in antioxidants, citrus fruits provide vitamin C, and green tea contains polyphenols, but they do not offer a substantial amount of omega-3 fatty acids compared to soybean oil.