Difficulty: Medium
Average Score: 62%
Simulated
A nurse is preparing to mix NPH insulin and regular insulin for administration. Which of the following actions should the nurse take?
Correct answer
B
Rationale
The correct answer is B: Inject air into each vial. This step is necessary to prevent creating a vacuum in the vial, making it easier to withdraw the correct amount of insulin. Injecting air into the vial equalizes the pressure, allowing for smooth withdrawal of the medication.
Choice A is incorrect because withdrawing the NPH insulin first without injecting air into the vials may lead to difficulty in withdrawing the correct amount of insulin due to pressure differences. Choice C is incorrect as a tuberculin syringe is not typically used for insulin administration. Choice D is incorrect because shaking the regular insulin vial may cause frothing, affecting the accuracy of the dose measurement.
Choice A is incorrect because withdrawing the NPH insulin first without injecting air into the vials may lead to difficulty in withdrawing the correct amount of insulin due to pressure differences. Choice C is incorrect as a tuberculin syringe is not typically used for insulin administration. Choice D is incorrect because shaking the regular insulin vial may cause frothing, affecting the accuracy of the dose measurement.