Nokea
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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You are preparing an intramuscular injection of vitamin K for a newborn who weighs 8 pounds and 8 ounces (3.8 kg). Which of the following needle sizes would be appropriate to use?
- A. 29 g ? 7/8 in
- B. 25 g ? 7/8 in
- C. 21 g ? 1 in
- D. 18 g ? 1 in
- E. 22 g ? 1½ in
Correct Answer: B
Rationale: A 25 g ? 7/8 in needle is appropriate for IM injections in newborns, ensuring penetration into the muscle (vastus lateralis) without excessive depth.
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.
Which of the following statements regarding insulin is(are) accurate?
- A. All insulin types can be mixed with other types.
- B. When drawing up regular and intermediate-acting insulins into the same syringe, you must draw the regular insulin first.
- C. Daily injection sites should be rotated once a week.
- D. Insulin is best kept in a dark, dry cabinet.
- E. The preferred site for administering insulin is the back of the upper arm.
Correct Answer: B
Rationale: b is correct because regular (clear) insulin should be drawn up first to prevent contamination with intermediate-acting (cloudy) insulin. a is incorrect as not all insulins can be mixed (e.g., Lantus cannot be mixed). c is incorrect as sites should be rotated daily, not weekly. d is incorrect as insulin should be stored in a refrigerator or cool place, not a dry cabinet. e is incorrect as the abdomen is the preferred site for insulin due to consistent absorption.
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.
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.