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?
Replace the needle for withdrawal with a safety needle.
Inject 20 units of air into the NPH insulin vial.
Inject 10 units of air into the regular insulin vial.
Withdraw 10 units of insulin from the regular insulin vial.
The Correct Answer is B
The correct answer is choice B. Inject 20 units of air into the NPH insulin vial.
Choice A rationale:
Replacing the needle for withdrawal with a safety needle is an important step to ensure safety and prevent needle-stick injuries. However, this action is not the first step when mixing two types of insulin. The initial steps involve preparing the insulin vials by injecting air into them.
Choice B rationale:
Injecting 20 units of air into the NPH insulin vial is the correct first step. This is because NPH insulin is a suspension and needs to be mixed properly. Injecting air into the vial helps to equalize the pressure, making it easier to withdraw the correct amount of insulin later. This step is crucial to ensure accurate dosing and proper mixing of the insulin.
Choice C rationale:
Injecting 10 units of air into the regular insulin vial is also necessary, but it is not the first step. The correct sequence is to first inject air into the NPH insulin vial, then into the regular insulin vial. This order helps prevent contamination of the regular insulin with NPH insulin.
Choice D rationale:
Withdrawing 10 units of insulin from the regular insulin vial is an important step, but it should be done after injecting air into both vials. The correct sequence ensures that the insulin is mixed properly and that the doses are accurate.
By following these steps in the correct order, the nurse ensures that the insulin is mixed safely and effectively, minimizing the risk of errors and ensuring proper glycemic control for the patient.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Placing the client back in bed during a seizure could potentially cause injury. The priority is to protect the client from harm during the seizure.
Choice B rationale:
Placing the client on his side, specifically the recovery position, helps keep the airway clear and prevents aspiration.
Choice C rationale:
Holding the client’s arms and legs from moving could cause injury. It’s important to let the seizure take its course while protecting the client from harm.
Choice D rationale:
Inserting a tongue blade or any other object in the client’s mouth during a seizure is not recommended. It could cause injury to the client or the nurse.
Correct Answer is B
Explanation
Choice A rationale:
Examining feet daily is important for preventing complications related to peripheral neuropathy, not retinopathy or nephropathy.
Choice B rationale:
Maintaining stable blood glucose levels can help prevent microvascular complications such as retinopathy and nephropathy.
Choice C rationale:
Annual eye examinations are important, but they do not prevent retinopathy.
Choice D rationale:
Wearing compression stockings daily is not directly related to preventing retinopathy or nephropathy.
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