The nurse is caring for a client with neurogenic diabetes insipidus and administers what drug to treat the condition.

The correct answer is c. The importance of consuming adequate amounts of water.

Rationale for Choice A:

• Statement:The need to monitor for systemic side effects.
• Rationale:It's not accurate to prioritize monitoring for systemic side effects when teaching a patient about psyllium (Metamucil).Psyllium is a bulk-forming laxative that primarily acts within the gastrointestinal tract,and systemic side effects are rare.While it's essential to be aware of potential side effects,focusing on them during initial teaching might cause unnecessary anxiety.

Rationale for Choice B:

• Statement:The need to use the dry form of Metamucil to prevent cramping.
• Rationale:This statement is incorrect.It's generally recommended to mix psyllium with water or another liquid before ingestion.Consuming the dry form can increase the risk of choking and might not adequately hydrate stool.

Rationale for Choice C:

• Statement:The importance of consuming adequate amounts of water.
• Rationale:This is the most crucial information to emphasize when teaching about psyllium.Psyllium works by absorbing water and forming a bulky gel that softens stool and promotes bowel movements.Without sufficient water intake,psyllium can cause constipation to worsen or lead to intestinal obstruction.

Rationale for Choice D:

• Statement:The onset of action of 30 to 60 minutes after administration.
• Rationale:This statement is inaccurate.Psyllium is not a fast-acting laxative.It typically takes 12-72 hours to produce a bowel movement.Informing patients about the expected time frame for results is essential to manage expectations and prevent unnecessary medication overuse.

Oxygen cannot diffuse rapidly across the membrane to tissues in the eye. This is because diabetic retinopathy is a condition that occurs when high blood sugar levels damage the tiny blood vessels that nourish the retina, the light-sensitive tissue at the back of the eye. As a result, the retina becomes ischemic (lacking oxygen) and tries to grow new blood vessels that are fragile and leaky.

Choice A is wrong because inability of cells in the eye to reproduce is not a cause of diabetic retinopathy.

The retina has a high metabolic rate and needs a constant supply of oxygen and nutrients to function properly.

Choice B is wrong because increase of aqueous humor in the eye is not a cause of diabetic retinopathy.

Aqueous humor is the clear fluid that fills the front part of the eye, not the retina.

An increase of aqueous humor can cause glaucoma, which is a different eye disorder that affects the optic nerve.

Choice C is wrong because decrease of nerve innervations throughout the eye is not a cause of diabetic retinopathy.

Nerve innervations are the connections between nerves and other tissues, such as muscles or glands.

Diabetic retinopathy affects the blood vessels, not the nerves, of the retina.