A nurse is mixing a short-acting insulin and an intermediate-acting insulin in the same syringe for a client who has diabetes mellitus.
Which of the following actions should the nurse take first?
Draw the intermediate-acting insulin into the syringe.
Draw the short-acting insulin into the syringe.
Inject air into the intermediate-acting insulin vial.
Inject air into the short-acting insulin vial.
The Correct Answer is C
A. When mixing insulins, you should draw the short-acting insulin into the syringe first. This is done after injecting air into both vials (first into intermediate-acting, then into short-acting). Drawing intermediate-acting insulin first can contaminate the short-acting insulin vial with the longer-acting solution, which could alter the effectiveness of future doses.
B. Although this step is required when mixing insulins, it is not the first step. The nurse should first inject air into both vials to maintain vial pressure.
C. The nurse should inject air into the intermediate-acting insulin vial first because it helps prevent contamination and maintains the correct pressure within the vial. Intermediate-acting insulin, typically NPH (Neutral Protamine Hagedorn), is cloudy, and air injection into the vial allows for easy withdrawal later on without disrupting the order of mixing.
D. Injecting air into the short-acting insulin vial is necessary but should be done after injecting air into the intermediate-acting vial. By injecting air into both vials first, the nurse prevents a vacuum effect, which can make it difficult to draw up the insulin. After injecting air, the nurse can draw the short-acting insulin into the syringe before moving to the intermediate-acting insulin. This order minimizes the risk of contamination.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A nurse can delegate the task of performing a simple dressing change to an assistive personnel.
Delegation is an essential nursing skill that allows a qualified healthcare worker, like an RN, to transfer routine and low-risk duties to nursing assistive personnel.
This frees up the RN’s time to address more pressing matters, including critical patients and tasks.
Choice A is wrong because changing IV tubing is not a task that can be delegated to assistive personnel.
Choice C is wrong because inserting an NG tube is not a task that can be delegated to assistive personnel.
Choice D is wrong because evaluating the healing of an incision is not a task that can be delegated to assistive personnel.
These tasks require the expertise and training of a licensed nurse.
Correct Answer is D
Explanation
During the contemplation stage of health behavior change, the client is thinking about change and becoming motivated to get started.
The nurse should present information about the benefits of quitting smoking to help the client assess the benefits of change.
Choice A is not correct because developing a plan for the client to integrate the change into her lifestyle is more appropriate for the preparation stage.
Choice B is not correct because recommending small changes for the client to make to change her behavior over time is more appropriate for the action stage.
Choice C is not correct because assisting the client in setting goals to make the change is more appropriate for the preparation stage.
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