A nurse is providing teaching about the use of crutches using a three-point gait to a client who has a tibia fracture.
Which of the following actions by the client indicates an understanding of the teaching?

A client who is ambulatory and receiving oxygen should be evacuated first during a fire because they are at risk of fire and explosion from the oxygen source. The nurse should instruct the staff to turn off the oxygen supply, remove the oxygen device from the client, and assist them to walk out of the building using the nearest exit.
Choice B is wrong because a client who uses a wheelchair and is confused is not in immediate danger from the fire. They can be evacuated using a swing carry or an extremity carry by two staff members after the clients who are more vulnerable are evacuated.
Choice C is wrong because a client who is bedridden and wears a hearing aid is not in immediate danger from the fire. They can be evacuated using a cradle drop by one staff member after the clients who are more vulnerable are evacuated.
Choice D is wrong because a client who has a fracture and is in balance suspension traction is not in immediate danger from the fire. They can be evacuated using a special device such as a sked or a sled by two or more staff members after the clients who are more vulnerable are evacuated.

This will facilitate the insertion of the catheter and reduce the risk of complications such as infiltration, phlebitis, or hematoma. A straight vein will also allow the catheter to be inserted up to the hub, which reduces the risk of contamination along the length of the catheter.

Choice A is wrong because selecting a site on the client’s dominant arm can interfere with the client’s mobility and increase the risk of dislodging the catheter. The nurse should choose a site on the client’s non-dominant arm, preferably on the hand or forearm.

Choice B is wrong because applying a tourniquet below the venipuncture site will impede blood flow and make it harder to locate a suitable vein. The nurse should apply a tourniquet above the venipuncture site, about 10 to 15 cm from the insertion site.

Choice C is wrong because elevating the client’s arm prior to insertion will decrease venous filling and make it harder to palpate a vein. The nurse should lower the client’s arm below the level of the heart to increase venous distension.

Normal ranges for IV catheter size and insertion angle depend on several factors, such as the type and duration of therapy, the condition and size of the vein, and the age and preference of the client.

In general, smaller gauge catheters (20 to 24) are preferred for peripheral IV therapy, and larger gauge catheters (14 to 18) are used for rapid fluid administration or blood transfusion. The insertion angle can vary from 10 to 30 degrees, depending on the depth and location of the vein.