Which response by the client indicates that medication instruction by the RN has been effective?

Use a fresh washcloth when cleaning each eye. This is because using the same washcloth for both eyes can transfer microorganisms from one eye to the other and cause cross-infection.

The other choices are wrong because:

Choice A is wrong because wiping from the outer part of the eye toward the inner portion can introduce microorganisms into the tear ducts and cause infection.

Choice B is wrong because rinsing the washcloth before washing the second eye does not eliminate all the microorganisms that might be on the cloth.

Choice C is wrong because asking the client to roll the eyes upward does not prevent spreading organisms from one eye to the other when bathing a client.

Normal ranges for eye hygiene are to use a clean washcloth or cotton ball for each eye, wipe from the inner to the outer canthus, and use warm water or saline solution.

Select a 0.5 mL syringe, 30 gauge, 8 mm needle and inject at a 90-degree angle. This is because Humulin R is a clear and colorless solution that can be given by subcutaneous injection.

A 0.5 mL syringe can hold up to 50 units of insulin, which is enough for the prescribed dose of 7 units. A 30 gauge, 8 mm needle is suitable for thin patients with poor skin turgor. Injecting at a 90-degree angle ensures that the insulin reaches the subcutaneous tissue and not the muscle.

Choice A is wrong because a 31 gauge, 6 mm needle is too short and may not deliver the insulin into the subcutaneous tissue.

Choice C is wrong because pinching the skin is not necessary for thin patients with poor skin turgor.

Choice D is wrong because a 1.0 mL syringe is too large for the prescribed dose of 7 units and may cause dosing errors. A 28 gauge, 12.7 mm needle is too long and may inject the insulin into the muscle, which can affect its absorption and action.