Correct Answer: B

Rationale: The correct answer is B because asking if the pain is sharp, dull, or crushing helps assess the quality of pain, providing specific information on the type of sensation felt. This is crucial for understanding the underlying cause and guiding appropriate treatment. A: Asking about pain being constant or intermittent addresses duration, not quality. C: Inquiring about what makes pain better or worse focuses on triggers, not quality. D: Asking when the pain started addresses onset time, not quality.

Correct Answer: C

Rationale: The correct answer is C: Obtain a portable x-ray to confirm placement. This is the priority intervention because it ensures the arterial line is correctly positioned, reducing the risk of complications such as dislodgement or improper placement. Applying a pressure dressing (choice A) may be necessary but is not the priority. Ensuring tubing connections are tightened (choice B) is important for preventing leaks but does not address placement. Restraining the affected extremity (choice D) is unnecessary and can lead to complications. The x-ray confirms correct placement, ensuring accurate monitoring and treatment.

Correct Answer: C

Rationale: Correct Answer: C - Regular insulin Rationale: 1. Insulin promotes cellular uptake of potassium. 2. When insulin is administered, it moves potassium from extracellular to intracellular space. 3. This decreases plasma potassium levels safely. 4. Other options do not directly lower potassium levels in the same manner. Summary of Other Choices: A: Sodium polystyrene sulfonate - exchanges sodium for potassium in the intestines, not reducing total body potassium. B: Sodium polystyrene sulfonate with sorbitol - similar to A, does not reduce total body potassium. D: Calcium gluconate - does not directly lower potassium levels, used for treating hyperkalemia-induced cardiac toxicity.

Correct Answer: A

Rationale: The correct answer is A because comparing measured pressures with other physiological parameters ensures accuracy and consistency. This step helps in interpreting the RA P/CVP reading correctly. Choice B is incorrect as flushing the catheter with saline is not necessary for obtaining the pressure reading. Choice C is incorrect as inflating the balloon with air is not part of the correct procedure. Choice D is incorrect because obtaining the measurement during exhalation can affect the accuracy of the reading.

Correct Answer: C

Rationale: The correct answer is C: Primary nursing. Primary nursing is a care delivery model where one nurse is responsible for the total care of a group of clients over a 24-hour period. This promotes continuity of care, individualized attention, and better nurse-client relationships. In primary nursing, the nurse plans and directs care, coordinates with other healthcare team members, and serves as the main point of contact for the clients. A: Case management involves coordinating care across different healthcare providers and services, not necessarily focusing on a specific group of clients over a 24-hour period. B: Team nursing involves a team of healthcare providers working together to deliver care, rather than one nurse being responsible for a specific group of clients over a 24-hour period. D: Functional nursing divides tasks among different healthcare team members based on their specific skills, which may not provide the same level of continuity and individualized care as primary nursing.