APhA Immunization Vaccine Administration & Techniques — Questions and Answers
Question 1: What is the recommended injection site for an intramuscular (IM) vaccine in adults?
- Gluteus maximus
- Deltoid muscle (Correct answer)
- Vastus lateralis
- Abdomen
Correct answer: Deltoid muscle
The deltoid muscle in the upper arm is the preferred site for intramuscular vaccines in adults due to its accessibility and muscle mass.
Question 2: Which needle length is commonly used for IM vaccine administration in adults?
- 5/8 inch
- 1 to 1.5 inches (Correct answer)
- 2 inches
- 3 inches
Correct answer: 1 to 1.5 inches
A 1 to 1.5-inch needle is typically used for intramuscular injections in adults to ensure the vaccine reaches the muscle tissue.
Question 3: Why is it important to aspirate before administering an IM vaccine?
- To prevent injecting into a blood vessel
- It is not necessary for vaccine administration (Correct answer)
- To check for allergic reactions
- To increase vaccine absorption
Correct answer: It is not necessary for vaccine administration
Aspirating before injection is generally not necessary for vaccines because the deltoid muscle lacks major blood vessels, and aspiration can cause unnecessary discomfort.
Question 4: What is the proper angle for administering a subcutaneous (SC) vaccine?
- 90 degrees
- 45 degrees (Correct answer)
- 15 degrees
- 0 degrees (parallel to skin)
Correct answer: 45 degrees
Subcutaneous injections should be given at a 45-degree angle to ensure the vaccine is delivered into the fatty tissue beneath the skin.
Question 5: Which action helps minimize pain during vaccine administration?
- Slow injection with prolonged pressure
- Quick, steady injection (Correct answer)
- Massaging the injection site immediately after
- Tensing the muscle during injection
Correct answer: Quick, steady injection
Injecting the vaccine quickly and steadily, along with relaxing the muscle, can help minimize discomfort for the patient.
Question 6: What should be done immediately after administering a vaccine?
- Discard the vaccine record
- Record the vaccine details and observe the patient (Correct answer)
- Tell the patient to leave immediately
- Apply excessive pressure to the site
Correct answer: Record the vaccine details and observe the patient
Recording the vaccine details and monitoring for any adverse reactions are essential steps after vaccine administration.
APhA Immunization Vaccine Administration & Techniques
What is the recommended injection site for an intramuscular (IM) vaccine in adults?