Correct Answer: B

Rationale: In this scenario, the nurse should choose option B, which is to document the client's condition and communication with the surgeon. By documenting the client's condition and the communication with the surgeon, the nurse ensures legal protection and maintains continuity of care. This documentation serves as evidence of the actions taken, communication exchanged, and the rationale behind decisions made. Option A, notifying the nursing manager, may not be necessary at this stage unless there are specific institutional protocols requiring it. Administering additional fluids without further clarification may not be appropriate and could worsen the client's condition if not indicated. Calling the surgeon back immediately (option D) may disrupt the agreed-upon plan of action and fail to follow the surgeon's instructions of reassessment after an hour.

Correct Answer: C

Rationale: The correct answer is C: Increased breath sounds. When a client with pneumonia is receiving antibiotic therapy, increased breath sounds indicate that the lungs are clearing and the pneumonia is resolving. This improvement in breath sounds suggests that the antibiotics are effectively treating the infection. Choices A, B, and D are incorrect because a decreased white blood cell count, decreased respiratory rate, and increased heart rate are not specific indicators of the effectiveness of antibiotic therapy in treating pneumonia. While these parameters may change in response to treatment, they do not directly reflect the resolution of the pneumonia infection.

Correct Answer: C

Rationale: In this situation, it's essential to acknowledge and respect the client's feelings and choices. Choice C is the most appropriate response as it validates the client's decision not to discuss the surgery while offering support and understanding. Giving the client space and letting them know you will be available when they are ready shows empathy and fosters trust. Choices A and B do not respect the client's autonomy and may come across as dismissive or pressuring. Choice D assumes the client needs advice from someone who has had a similar experience without considering the client's current emotional state and preferences.

Correct Answer: A

Rationale: In medication wastage situations involving controlled substances, it is crucial to have a second nurse observe and verify the disposal process. This practice ensures accountability and prevents any mishandling or diversion of the medication. Choice B is incorrect because notifying the pharmacy is not the immediate action required in this scenario. Choice C is incorrect as locking the remaining medication in the controlled substance cabinet without proper witnessing does not ensure accountability. Choice D is incorrect as disposing of the vial with the remaining medication in a sharps container does not address the need for a witness to verify the wastage of the controlled substance.

Correct Answer: A

Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.