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 ["C","D"]
Explanation
The correct answers are:
- c."I need to have a fire escape plan with my family."
- d."I will use the grab bars when getting in and out of the bathtub."
Rationale for each choice:
Choice c:
Having a fire escape plan is crucial for home safety. It ensures that all family members know what to do in the event of a fire, which can save valuable time and lives. Here's a detailed explanation of why a fire escape plan is essential:
- Early Escape:A plan promotes quick evacuation,as everyone understands the escape routes and procedures.
- Reduced Panic:Knowing what to do in a crisis minimizes panic and confusion,allowing for calmer and more efficient actions.
- Accountability:The plan ensures that no one is left behind,especially children,older adults,or individuals with disabilities.
- Firefighter Assistance:It provides vital information to firefighters,aiding their rescue efforts.
- Regular Practice:Regularly practicing the plan familiarizes everyone with their roles and actions,ensuring smoother execution in a real fire.
Choice d:
Grab bars provide stability and support, reducing the risk of falls in bathrooms. Falls are a major safety hazard, especially for older adults, and can lead to serious injuries. Grab bars offer several benefits, including:
- Entering and Exiting:They facilitate safe entry and exit from the bathtub or shower,especially on slippery surfaces.
- Balance Support:They provide support when standing,reducing the likelihood of losing balance.
- Transfer Assistance:They assist individuals with mobility impairments in safely transferring between the bathtub,shower,or toilet.
- Confidence Boost:They offer a sense of security,allowing individuals to feel more confident and independent in the bathroom.
Rationale for incorrect choices:
Choice a:
Setting a hot water heater to 140 degrees Fahrenheit is unsafe. It can cause scalding burns within seconds, especially for children and older adults. The recommended temperature is 120 degrees Fahrenheit to balance safety and energy efficiency.
Choice b:
Taping over frayed electrical cords is a temporary and hazardous fix. It does not address the underlying issue of damaged wiring, which can lead to electrical shocks, fires, or electrocution. Frayed cords should be replaced immediately with new, undamaged ones.
Correct Answer is D
Explanation
This statement indicates that the client understands the importance of gradually adjusting to wearing a hearing aid.
It can take time for the brain to adapt to new sounds and volume levels, so it’s important to increase usage gradually.
Choice A is wrong because turning the hearing aid up as high as it will go can cause discomfort and may not improve hearing.
Choice B is wrong because hearing aids typically last several years with proper care and maintenance.
Choice C is wrong because it’s important to remove the battery from the hearing aid when not in use to preserve battery life.
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