Correct Answer: C

Rationale: The most effective strategy for reducing medication errors on a nursing unit is using barcoding technology for medication administration. Barcoding technology helps to ensure the right medication is given to the right patient in the right dose at the right time. Increasing the nurse-to-patient ratio (choice A) may help in preventing errors due to workload, but it may not address the root cause of medication errors. Providing ongoing education (choice B) is important but may not be as effective as implementing technology to directly prevent errors during administration. Increasing the use of PRN medications (choice D) can actually increase the risk of errors if not carefully monitored and controlled.

Correct Answer: B

Rationale: During a staffing crisis, managers may need to utilize unlicensed assistive personnel (UAPs) as nurse extenders. UAPs help free up nurses' time, enabling them to focus more on direct client care. Float RNs (Choice A) refer to registered nurses who work in various units as needed, not specifically as nurse extenders during crises. LPNs (Choice C) are licensed practical nurses, not typically used as nurse extenders. Agency nurses (Choice D) are temporary nurses hired from external agencies, not necessarily designated as nurse extenders.

Correct Answer: B

Rationale: In a client with hypovolemia, the nurse should prioritize reporting the elevated potassium level of 5.8 mEq/L to the provider. Hypovolemia can lead to electrolyte imbalances, and hyperkalemia (potassium level above 5.0 mEq/L) is a serious condition that can result in cardiac arrhythmias and requires immediate attention. The other laboratory results, BUN, creatinine, and sodium, are also important in assessing renal function and fluid balance, but the priority in this case is the elevated potassium level due to its potential life-threatening complications.

Correct Answer: A

Rationale: The correct answer is A. Ketones in the urine may indicate infection or blockage in the urinary catheter, necessitating irrigation to ensure proper drainage. Choice B, an unusual odor in the urine, may suggest infection but does not directly indicate the need for catheter irrigation. Choice C, a high urine specific gravity, is indicative of concentrated urine but does not specifically point to the need for catheter irrigation. Choice D, a bladder scan showing 525 mL of urine, indicates urine retention, which may require catheterization or further assessment but not necessarily irrigation.

Correct Answer: D

Rationale: In this scenario, the nurse should notify the nursing manager next. The surgeon's instructions are related to the client's condition, and it is crucial to inform the nursing manager about the situation. Option A is incorrect because documenting the surgeon's instructions in the medical record is not the immediate next step. Option B is also incorrect as completing an incident report is not warranted in this situation. Option C is not the best choice as consulting the charge nurse may cause a delay in escalating the situation to higher management, which is necessary in cases of emergency like hemorrhagic shock.