A nurse in a provider’s office is caring for a client who asks about using acupuncture to manage his osteoarthritis pain.

The nurse should identify which of the following conditions as a contraindication for receiving this treatment?

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.

Answer and explanation.

The correct answer is choice A. A nontender, protruding abdomen is a normal finding for a 2year-old toddler. This is due to the immature development of the abdominal muscles and the relatively large size of the liver and kidneys in relation to the rest of the body.

Choice B is wrong because the head circumference should be equal to or less than the chest circumference by age 2. A head circumference that exceeds the chest circumference could indicate hydrocephalus or other neurological problems.

Choice C is wrong because the fontanels, or soft spots on the skull, should be closed by age 18 months. Palpable fontanels could indicate dehydration, malnutrition, or congenital disorders.

Choice D is wrong because the natural loss of deciduous teeth, or baby teeth, usually begins around age 6. Premature loss of teeth could indicate dental caries, trauma, or endocrine disorders.