One way for a nursing assistant to determine whether to perform a procedure or not is to

Correct Answer: D

Rationale: The correct answer is D: Perform a procedure if it is within his scope of practice. This is the correct choice because performing procedures within one's scope of practice ensures that the nursing assistant has the necessary training, skills, and legal authorization to safely carry out the task. It aligns with professional standards and guidelines, promoting patient safety and quality care. A, B, and C are incorrect choices because they do not consider the importance of following legal and ethical boundaries in healthcare. Choice A suggests performing procedures without training, which can lead to harm to the patient. Choice B implies a trial-and-error approach, which is unsafe and unprofessional. Choice C disregards the importance of job descriptions and legal limitations, potentially risking patient safety and violating regulations.

Correct Answer: B

Rationale: The correct answer is B: Acute care"”intensive care unit. Immediately post-procedure, the patient undergoing a lung lobe removal will require intensive monitoring and care due to the potential for complications such as respiratory distress, bleeding, or infection. The intensive care unit provides the necessary level of care with specialized equipment and staff to manage these risks effectively. Choice A: Acute care"”medical-surgical unit may not provide the level of monitoring and intervention needed for a patient post lung lobe removal. Choice C: Ambulatory surgery is not suitable as this procedure requires more intensive monitoring and care. Choice D: Ambulatory surgery"”extended stay is not appropriate as an extended stay in an ambulatory setting may not have the resources to manage potential complications effectively.

Correct Answer: B

Rationale: Correct Answer: B Rationale: 1. Wrapping the finger in moistened gauze helps maintain tissue hydration and minimizes desiccation. 2. Sealing the finger in a plastic bag prevents contamination and keeps the amputated part secure. 3. Placing the finger on ice helps preserve the amputated part by reducing metabolic activity and delaying tissue death. 4. Moistened gauze with normal saline is preferred over dry gauze to prevent further tissue damage. Summary: A: Incorrect - Not wrapping the finger increases the risk of contamination and desiccation. C: Incorrect - Rinsing the finger can further damage the tissues and is unnecessary. D: Incorrect - Placing the finger close to the patient's core does not provide adequate preservation as ice does.

Correct Answer: B

Rationale: The correct answer is B: Multiplex mode. In multiplex mode, multiple signals are combined into a single signal for transmission, allowing voice and telemetry data to be sent simultaneously. This is achieved through time-division multiplexing or frequency-division multiplexing. Trunk system mode (A) involves sharing a pool of communication channels among multiple users, but does not specifically enable voice and telemetry transmission simultaneously. Duplex mode (C) allows for two-way communication but may not necessarily support both voice and telemetry simultaneously. Simplex mode (D) only allows communication in one direction, making it unsuitable for transmitting voice and telemetry simultaneously.

Correct Answer: C

Rationale: Rationale for Correct Answer (C): An early sign of a possible aortic dissection is a blood pressure difference of 20 mmHg or more in the upper extremities. This is due to the unequal blood pressure distribution resulting from the dissection affecting the aorta. The pressure gradient occurs because the false lumen of the aorta created by the dissection leads to different blood pressures in the upper extremities. Monitoring blood pressure in both arms helps detect this discrepancy. Summary of Incorrect Choices: A: A narrowing pulse pressure and tachycardia - Not specific to aortic dissection. B: A sudden rise in systolic blood pressure and fall in diastolic blood pressure - More commonly seen in aortic rupture than dissection. D: A reddish-blue discoloration of the skin above the shoulders - Typically associated with different conditions and not a characteristic sign of aortic dissection.