A client with persistent low back pain has received a prescription for an electronic stimulator (TENS) unit. After the nurse applies the electrodes and turns on the power, the client reports feeling a tingling sensation. How should the nurse respond?

The correct answer is choice C. Observe both lower extremities for redness and swelling.

Choice A rationale:

Palpating all peripheral pulse points for volume and strength is important for assessing circulation, but it does not directly evaluate the effectiveness of intermittent pneumatic compression (IPC) devices.IPC devices are primarily used to prevent deep vein thrombosis (DVT) and improve venous return, so monitoring for signs of DVT is more relevant.

Choice B rationale:

Monitoring the amount of drainage from the client’s incision is crucial for assessing wound healing and detecting potential infections, but it is not related to the effectiveness of IPC devices.

Choice C rationale:

Observing both lower extremities for redness and swelling is the most important assessment for evaluating the effectiveness of IPC devices. Redness and swelling can be signs of DVT, which IPC devices are designed to prevent.Therefore, this assessment directly measures whether the devices are functioning as intended.

Choice D rationale:

Evaluating the client’s ability to use an incentive spirometer is important for preventing postoperative pulmonary complications, but it does not assess the effectiveness of IPC devices.

Choice A rationale: Misplacing car keys occasionally is a common occurrence and may not necessarily indicate Alzheimer's disease. It can happen to anyone, especially when distracted or in a hurry.

Choice B rationale: Difficulty performing familiar tasks, such as cooking a meal or driving to a familiar location, is an early warning sign of Alzheimer's disease. It indicates changes in cognitive function.

Choice C rationale: Losing sense of time, such as not knowing the date, day of the week, or season, can be an early indicator of Alzheimer's disease. It reflects impairments in temporal orientation.

Choice D rationale: Problems with performing basic calculations, such as managing finances or following a recipe, are early signs of Alzheimer's disease. It shows a decline in cognitive abilities related to numbers and problem-solving.

Choice E rationale: Becoming lost in a usually familiar environment, such as getting disoriented in one's own neighborhood, is a significant early warning sign of Alzheimer's disease. It suggests spatial and memory impairments.