A nurse is caring for a client who has AIDS. Which of the following isolation precautions should the nurse implement?

Choice A reason: Injecting the medication into the abdomen above the level of the iliac crest is not recommended. The preferred sites for subcutaneous injections are the fatty tissue over the triceps, the abdomen from below the costal margin to the iliac crests, and the anterior aspects of the thighs. The area above the iliac crest may not have sufficient subcutaneous tissue, which could affect the absorption of the medication.

Choice B reason: Using a 1-inch needle can be appropriate depending on the client's body mass. For most adults, a 5/8-inch to 1-inch needle is recommended for subcutaneous injections to ensure the medication is delivered to the subcutaneous tissue and not into the muscle.

Choice C reason: Using a 25-gauge needle is the appropriate action when administering heparin subcutaneously. A smaller gauge needle, such as 25-gauge, is typically used for subcutaneous injections to minimize discomfort and tissue trauma.

Choice D reason: Massaging the injection site after administration of the medication is not recommended when administering heparin subcutaneously. Massaging the site can cause the medication to be absorbed more quickly than intended and may increase the risk of bleeding.

Choice A reason: The fluctuation of fluid in the water-seal chamber does not necessarily mean that the lung is fully re-expanded. The water-seal chamber's fluid level fluctuates with the client's breathing because it reflects the changes in intrathoracic pressure.

Choice B reason: The statement "Your breathing pattern causes this" is correct. The fluctuation, also known as tidaling, in the water-seal chamber is normal and occurs in response to the client's breathing. When the client inhales, negative pressure in the chest cavity causes the fluid level to rise, and when the client exhales, the pressure becomes positive, causing the fluid level to fall.

Choice C reason: Suction pressure that is too high can cause continuous bubbling in the suction control chamber but does not directly cause the fluid in the water-seal chamber to rise and fall. The suction control chamber's bubbling should be steady and gentle when the suction is set correctly.

Choice D reason: Continuous bubbling in the water-seal chamber may indicate an air leak, which is a problem that needs to be addressed. However, normal fluctuation with breathing is not indicative of an air leak.