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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
This statement indicates that the nurse should properly position the fracture bedpan to facilitate its use.
The shallow end of the fracture bedpan should be placed under the client’s buttocks to provide support and comfort.
Choice B is wrong because hyperextending the client’s back can cause discomfort and may not facilitate the use of the fracture bedpan.
Choice C is wrong because it is not necessary for the client to try to defecate for 20 minutes while on the fracture bedpan.
Choice D is wrong because keeping the bed flat may not provide the most comfortable position for the client while using the fracture bedpan.
Correct Answer is D
Explanation
The first two actions the nurse should take are to obtain a sputum culture and a chest X-ray.
These tests can help diagnose the cause of the client’s symptoms and guide treatment.
Choice A is wrong because administering antibiotics and bronchodilators should only be done after a diagnosis has been made.
Choice B is wrong because airborne precautions and isolation may not be necessary depending on the cause of the client’s symptoms.
Choice C is wrong because cough suppressants and antihistamines may not be appropriate treatments depending on the cause of the client’s symptoms.
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