Step 16: Review Practice Exercise 26-3
Review the answers to the Practice Exercise and use this as a study tool when preparing for your quiz.
1. It’s riskier to inject drugs into the body than it is to take them orally. a. True
2. Which part of a syringe has calibrations on the side that measure medications? b. Barrel
3. This is a hollow metal tube of varying length with a pointed tip. b. Needle
4. The needle’s gauge and length chosen can vary based on the c. type of tissue and the injection site.
5. Withdrawing medication from a vial is the same process as withdrawing it from an ampule. b. False
6. When do most contamination accidents during syringe disposal occur? b. Recapping the needle
7. This raised, blister-like area forms with an intradermal injection. b. Wheal
8. Which injection does not need to be aspirated? c. Intradermal
9. The correct response to insulin reaction is c. an immediate intake of sugar or glucose.
10. This method is used to ensure that you have not penetrated a blood vessel. a. Aspiration
11. Why would a healthcare professional select an injectable administration over oral medication? Healthcare professionals use such drugs for several reasons; when patient can’t tolerate drugs orally, when digestion destroys drugs, when drugs are unreliably absorbed when the patient takes them orally or when the patient needs the drugs in large doses to reach a therapeutic level rapidly.
12. For an intradermal injection, detail the injection site(s), layer of tissue penetrated, type of needle, angle of insertion and reason for the type and angle. Injection sites include the upper arm, inner forearm, upper back below the shoulder blades and the pectoral area of the chest. It’s penetrated to the dermal layer. The type of needle is a 1mL TB syringe, 25- to 27-gauge 1/2 to 5/8” needle at a 10- to 15-degree angle. The reason for needle type and angle is to ensure that the medication stays in the dermal layer.
13. For a subcutaneous injection, detail the injection site(s), layer of tissue penetrated, type of needle, angle of insertion and reason for the type and angle. Injection sites are those that have plenty of fatty tissue, including the abdomen, the top of the legs and the back just below the shoulder blades. The layer of fatty tissue just below the skin is the penetration site. The type of needle is a 3mL syringe, 25-gauge 5/8” needle at a 45-degree angle. This kind of injection is given when the medication might irritate muscle tissue, or a slower rate of absorption is desired.
14. For an intramuscular injection, detail the injection site(s), layer of tissue penetrated, type of needle, angle of insertion and reason for the type and angle. Injection sites include the deltoid muscle of the upper arm, the dorsogluteal site and the ventrogluteal site on the side of the hip. The muscle layer is penetrated with a 3mL syringe, 23-gauge 1” needle at a 90-degree angle. A long, fairly wide needle is needed to reach and penetrate the muscle. Allows quick absorption. The angle used is to reach the muscle through the epidermal layers.