A client diagnosed with cholecystitis reports right upper quadrant pain that radiates to the right shoulder. Which of the following interventions is the priority for the nurse to implement?

Choice A reason: This is incorrect because increasing her voice when speaking to the client may not prevent complications, but rather annoy or offend the client. The nurse should not assume that a client with a visual impairment has a hearing impairment as well unless it is confirmed by assessment or history. The nurse should speak in a normal tone and volume and identify herself by name and role.
Choice B reason: This is incorrect because lowering the bed rails before lowering the bed may increase the risk of complications, such as falls or injuries. The nurse should keep the bed rails up until the client is ready to get out of bed and lower them only when necessary. The nurse should also lock the wheels of the bed and adjust it to a comfortable height for the client.
Choice C reason: This is incorrect because using hand gestures to point to where the client will walk may not prevent complications, but rather confuse or frustrate the client. The nurse should not use visual cues or gestures that are meaningless to a client with a visual impairment. The nurse should use verbal directions and descriptions instead, such as "The restroom is on your left, about 10 steps away."
Choice D reason: This is correct because standing slightly in front and to one side of the client can prevent complications, such as collisions or falls. The nurse should guide the client by offering her arm or shoulder for support and walking slightly ahead of him or her. The nurse should also warn the client about any obstacles or changes in terrain, such as stairs, doors, or rugs.

Choice A Reason: Head trauma is not one of the top causes of blindness in the United States, but rather a possible cause of it. Head trauma can damage the optic nerve, retina, or brain, leading to vision loss or impairment.

Choice B Reason: Cardiovascular disease is not one of the top causes of blindness in the United States, but rather a risk factor for it. Cardiovascular disease can affect the blood supply and oxygen delivery to the eyes, leading to conditions such as glaucoma, macular degeneration, or retinal vein occlusion.

Choice C Reason: Syphilis is not one of the top causes of blindness in the United States, but rather a rare cause of it. Syphilis is a sexually transmitted infection that can affect the eyes, leading to inflammation, scarring, or detachment of the retina.

Choice D Reason: This is the correct choice. Diabetic retinopathy is one of the top causes of blindness in the United States, affecting about 4.1 million adults. Diabetic retinopathy is a complication of diabetes that damages the blood vessels in the retina, leading to bleeding, swelling, or leakage of fluid. It can cause blurred vision, floaters, or blindness if left untreated.