A nurse is teaching a client who is newly diagnosed with type 1 diabetes mellitus about insulin safety. Which of the following statements by the nurse is appropriate?

Choice A Reason:

Insulin is stable at room temperature (between 59°F and 86°F) for up to one month. This is important for patients to know, especially if they do not have immediate access to refrigeration. However, it is crucial to avoid exposing insulin to extreme temperatures, such as direct sunlight or freezing conditions, as these can degrade the medication’s effectiveness.

Choice B Reason:

While some types of insulin can be mixed in the same syringe, this practice is not universally applicable to all insulin types. For example, rapid-acting and intermediate-acting insulins can sometimes be mixed, but long-acting insulins should not be mixed with other insulins. Therefore, this statement is not entirely accurate and should be clarified based on the specific types of insulin being used.

Choice C Reason:

Storing insulin in the freezer is not recommended as freezing can damage the insulin, rendering it ineffective. Insulin should be stored in a refrigerator at temperatures between 36°F and 46°F. If insulin is accidentally frozen, it should not be used.

Choice D Reason:

While it is advisable for clients with type 1 diabetes to have backup medication and supplies, storing them in a car is not recommended due to the potential for extreme temperature fluctuations. Insulin and other diabetes supplies should be kept in a stable, controlled environment to ensure their efficacy.

Choice A reason:

“Blood flow is altered due to restricted stretching of the ventricles, impairing the heart’s ability to contract” is not accurate in the context of peripheral arterial disease (PAD). PAD primarily affects the arteries outside the heart, particularly those supplying the legs and feet. It is caused by atherosclerosis, which leads to the narrowing and hardening of the arteries, reducing blood flow to the extremities. The statement about restricted stretching of the ventricles and impaired heart contraction is more relevant to conditions like heart failure or cardiomyopathy.

Choice B reason:

“Blood flow is altered due to increased pressure in the arteries” is a more accurate description of PAD. In PAD, the buildup of fatty deposits (plaques) in the arterial walls leads to increased resistance and pressure within the arteries. This condition reduces the flow of oxygenated blood to the limbs, causing symptoms such as pain, cramping, and fatigue, especially during physical activity. Managing PAD involves lifestyle changes, medications, and sometimes surgical interventions to improve blood flow and reduce symptoms.