A nurse is instructing a school-age child who has asthma about the use of a peak expiratory flow meter.

Which of the following instructions should the nurse include in the teaching?

The correct answer is choice D, a noncoring needle.

A noncoring needle is a special type of needle that has a beveled tip and a side hole. It is designed to prevent damage to the port’s septum, which is the soft silicone top that serves as the vein access point.

A noncoring needle also reduces the risk of infection and clotting.

Choice A is wrong because a butterfly needle is a small, winged needle that is used for peripheral venous access, not for accessing a port. A butterfly needle can damage the port’s septum and cause leakage or infection.

Choice B is wrong because an angiocatheter is a thin, plastic tube that is inserted into a vein using a needle.

It is used for short-term IV therapy, not for accessing a port. An angiocatheter can also damage the port’s septum and cause complications.

Choice C is wrong because a 25-gauge needle is too small to access a port.

A 25-gauge needle is typically used for subcutaneous injections, not for intravenous injections. A 25-gauge needle can also clog the port or cause hemolysis (breakdown of red blood cells).

Normal ranges for ports vary depending on the type and size of the port, but generally they have a reservoir diameter of 1.5 to 2.5 cm, a catheter length of 40 to 60 cm, and a catheter diameter of 0.8 to 1.2 mm. Ports are usually flushed with saline or heparin solution every 4 to 6 weeks when not in use to prevent clotting.

Choice A reason:

"You might experience altered taste sensations" is the correct statement. When providing teaching to a client about to undergo external radiation therapy for cancer, the nurse should include information about potential side effects and what to expect during the treatment. One common side effect of radiation therapy, especially when the treatment is focused on or near the head and neck region, is altered taste sensations. Radiation can affect the taste buds and lead to changes in how foods taste.

Choice B reason:

"Use rubbing alcohol to remove the ink markings. “The statement is incorrect. The ink markings made on the client's skin are used as reference points for the radiation therapy treatment. It is essential not to remove these markings, as they are crucial for accurate positioning during each treatment session. The nurse should instruct the client not to tamper with the markings, and the radiation therapy team will remove them when they are no longer needed.

Choice C reason:

"Wear a binder over the radiation site." The statement is incorrect. Wearing a binder over the radiation site is not a standard practice during external radiation therapy. The client should be instructed to follow the specific guidelines provided by the radiation therapy team regarding clothing and positioning during treatments. The use of binders or other tight clothing over the treatment area may not be recommended, as it can cause discomfort or interfere with the delivery of radiation.

Choice D reason

"Wash your skin thoroughly with a washcloth after each treatment." Is incorrect statement. During radiation therapy, the skin in the treatment area can become sensitive. It is essential for the client to follow the specific instructions provided by the radiation therapy team regarding skin care. Generally, the client should avoid using harsh soaps or scrubbing the skin vigorously. Instead, they should gently cleanse the area with a mild soap or as directed by their healthcare providers.