When shown an Amsler grid, the client reports seeing wavy, distorted lines. The client also states his center of vision is dark and he has no sense of depth perception. The nurse suspects the client has which of the following conditions?

Choice A reason: This is the correct answer because the RN as a teacher aims to promote health literacy, self-management, and shared decision-making among patients and their families. By helping people to become empowered to take care of their health, the RN can facilitate positive health outcomes and prevent complications.

Choice B reason: This is not the correct answer because the RN as a teacher does not focus on explaining what nurses do, but rather on educating patients about their health conditions, treatments, and self-care. While it is important for the patient to understand the role of the nurse, this is not the main goal of teaching.

Choice C reason: This is not the correct answer because the RN as a teacher does not limit teaching to discharge instructions. Teaching is an ongoing process that starts from admission and continues throughout the continuum of care. Discharge instructions are only one component of teaching that summarizes the key information and actions that the patient needs to follow after leaving the hospital.

Choice D reason: This is not the correct answer because the RN as a teacher does not aim to teach patients how to give themselves treatments to get them out of the hospital quicker, but rather to help them achieve optimal health and wellness. Teaching patients how to give themselves treatments is part of the skill development aspect of teaching, but it is not the main goal. The main goal is to help patients understand the rationale, benefits, and risks of their treatments, and to support them in adhering to their treatment plans.

Choice A reason: This is the correct answer because stopping the KCl infusion is the first and most urgent action that the nurse should take. A high level of potassium in the blood, or hyperkalemia, can cause life-threatening cardiac arrhythmias and muscle weakness. The nurse should stop the source of excess potassium, which is the KCl infusion, and monitor the client's vital signs, electrocardiogram, and symptoms.

Choice B reason: This is not the correct answer because administering oral KCl is not the first or appropriate action that the nurse should take. Oral KCl would increase the potassium level in the blood, which is already too high. The nurse should avoid giving any potassium supplements or foods that are high in potassium, such as bananas, oranges, and potatoes.

Choice C reason: This is not the correct answer because encouraging fluids for dilution is not the first or effective action that the nurse should take. Fluids alone would not lower the potassium level in the blood, but rather dilute the concentration of other electrolytes, such as sodium and calcium. The nurse should administer fluids only as prescribed by the physician, and in conjunction with other treatments, such as diuretics, insulin, or sodium bicarbonate.

Choice D reason: This is not the correct answer because calling the pharmacy is not the first or priority action that the nurse should take. Calling the pharmacy may be necessary to obtain the medications that can lower the potassium level in the blood, such as diuretics, insulin, or sodium bicarbonate. However, the nurse should first stop the KCl infusion and notify the physician, who will order the appropriate medications and dosages.