ATI RN
ATI Pharmacology NRSG 106 Fletcher Exam Questions
Extract:
Question 1 of 5
A nurse is preparing to administer 10 units of regular insulin and 20 units of NPH insulin to a client who has diabetes mellitus. When mixing the two types of insulin, which of the following actions should the nurse take first?
Correct Answer: B
Rationale: The correct answer is B: Inject 10 units of air into the regular insulin vial first. This step is crucial to prevent creating a vacuum in the vial when withdrawing the insulin, ensuring accurate measurement. Injecting air into the vial displaces the volume of insulin to be withdrawn, making it easier to draw the correct amount. This step helps maintain the correct ratio of regular insulin to NPH insulin in the syringe.
The other choices are incorrect because:
A: Injecting air into the NPH insulin vial is not necessary when mixing the two insulins.
C: Replacing the needle for withdrawal is not the initial step in preparing the mixed insulin.
D: Withdrawing insulin from the regular insulin vial should only be done after injecting air to prevent mixing errors.
Question 2 of 5
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Question 3 of 5
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Question 4 of 5
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Question 5 of 5
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