A client has an important presentation to make in 4 hours, and he needs relief from the congestion of seasonal rhinitis. The client calls the nurse, explains the situation, and tells the nurse that he cannot afford to be drowsy.
What medication is most likely to meet this client’s needs?

Oxygen cannot diffuse rapidly across the membrane to tissues in the eye. Diabetic retinopathy is caused by damage to the blood vessels of the retina, which is the light-sensitive tissue at the back of the eye. This damage can reduce the oxygen supply to the retina and lead to vision problems.

Choice A is wrong because cells in the eye can reproduce normally, but they may not function properly due to high blood sugar levels or lack of oxygen.

Choice B is wrong because diabetic retinopathy does not affect the production of aqueous humor, which is the fluid that fills the front part of the eye.

However, diabetes can cause another eye condition called glaucoma, which is caused by increased pressure from too much aqueous humor.

Choice C is wrong because diabetic retinopathy does not affect the nerve innervations throughout the eye.

However, diabetes can cause another eye condition called diabetic neuropathy, which is caused by damage to the nerves that control eye movement and pupil dilation.

The nurse should ask this question because the client is taking a chemical stimulant laxative, which can cause dehydration and electrolyte imbalance, especially in combination with medications for heart failure and osteoarthritis that may also affect fluid and electrolyte balance. The nurse should assess the client’s hydration status and risk of hypovolemia or hypotension.

Choice B. Timing of medication administration is wrong because it is not the priority question in this situation.

The nurse should ask this question later to determine if the client is taking the medications as prescribed and if there are any drug interactions or adverse effects.

Choice C. Previous effectiveness of laxatives is wrong because it is not relevant to the client’s current condition.

The nurse should ask this question later to evaluate the client’s bowel habits and history of constipation.

Choice D. The amount of fiber intake is wrong because it is not the priority question in this situation.

The nurse should ask this question later to educate the client about dietary measures to prevent constipation and promote bowel health.