Nokea
What angle of insertion can be used for subcutaneous injections in patients of all sizes?
- A. 15 degrees
- B. 30 degrees
- C. 45 degrees
- D. 90 degrees
Correct Answer: C,D
Rationale: Subcutaneous injections can be administered at a 45-degree angle for most patients or a 90-degree angle for those with sufficient subcutaneous tissue, depending on needle length and patient size.
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Which of the following sites would be appropriate to use for an intramuscular injection in a 14-month-old infant with pneumonia?
- A. Femoris rectus
- B. Deltoid
- C. Vastus lateralis
- D. Ventrogluteal
- E. Dorsogluteal
Correct Answer: C,D
Rationale: The vastus lateralis and ventrogluteal sites are appropriate for IM injections in a 14-month-old due to sufficient muscle mass and safety.
Which of the following sites provides the best and most consistent absorption of insulin?
- A. Upper back
- B. Back of upper arms
- C. Deltoid
- D. Dorsal gluteal
- E. Abdomen
Correct Answer: E
Rationale: The abdomen provides the fastest and most consistent absorption for insulin due to its subcutaneous fat and blood supply.
The health-care provider has written an order to administer a PPD to Thomas Staccotti. As you gather your equipment and supplies, you know that you will need which of the following size needles and syringe?
- A. 18 g ? 1 in
- B. 20 g ? 7/8 in
- C. 25 g ? 7/8 in
- D. 23 g ? 1 in
Correct Answer: C
Rationale: For a PPD (purified protein derivative) test, which is an intradermal injection, a small gauge needle (25?27 gauge) with a short length (3/8 to 5/8 inch) is required to ensure the medication is injected just below the skin surface. A 25 g ? 7/8 in needle is appropriate.
What is the maximum volume of medication that can be instilled into the deltoid muscle of the average-size adult?
- A. 3 mL
- B. 2 mL
- C. 1 mL
- D. 0.5 mL
- E. 0.1 mL
Correct Answer: C
Rationale: The deltoid muscle can safely accommodate up to 1 mL in average-sized adults to avoid discomfort or tissue damage.
What angle of insertion should be used for intradermal injections?
- A. 15 degrees
- B. 30 degrees
- C. 45 degrees
- D. 90 degrees
Correct Answer: A
Rationale: Intradermal injections require a shallow angle (10?15 degrees) to place the medication just under the skin surface.