Which muscle(s)/site(s) is(are) used for injections in infants who are younger than 7 months?
- A. Femoris rectus
- B. Deltoid
- C. Vastus lateralis
- D. Ventrogluteal
- E. Dorsogluteal
Correct Answer: C
Rationale: The vastus lateralis is the preferred site for IM injections in infants younger than 7 months due to its adequate muscle mass and safety.
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The term basal refers to the minimum requirements when the body is
- A. Resting.
- B. Active.
- C. Asleep.
- D. Eating.
Correct Answer: A
Rationale: Basal insulin meets the body's minimum insulin needs during resting states, maintaining stable blood glucose levels.
You would aspirate before injecting the medication in which of the following injections?
- A. 1 mL promethazine IM in the dorsagluteal
- B. 1 mL purified protein derivative ID
- C. Novolin R insulin 4 units subcut
- D. Heparin 1,000 units subcut
- E. Cyanocobalamin 1,000 mcg Z-track
Correct Answer: A,E
Rationale: Aspiration is performed for IM injections, including Z-track, to check for blood and avoid intravenous administration. It is not required for intradermal or subcutaneous injections.
What is the maximum volume you can instill in the ventrogluteal site of a very large muscular female of approximately 240 pounds?
- A. 3 mL
- B. 2 mL
- C. 1 mL
- D. 0.5 mL
- E. 0.1 mL
Correct Answer: A
Rationale: The ventrogluteal site in a large, muscular adult can accommodate up to 3 mL due to its larger muscle mass.
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.
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.
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