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?
Insulin is stable at room temperature for one month.
Insulins can be mixed in the same syringe.
Storing insulin in the freezer will prolong its stability.
Clients with type 1 diabetes mellitus should keep backup medication and supplies in their car.
The Correct Answer is A
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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:
Coronary arteries do not become more elastic with age. Instead, they tend to become less elastic due to the buildup of plaque, a condition known as atherosclerosis. This buildup narrows the arteries and restricts blood flow, which can lead to coronary artery disease (CAD). The heart not receiving enough oxygen is a result of this narrowing, not increased elasticity.
Choice B Reason:
Coronary arteries decrease in diameter due to the buildup of plaque, which consists of fats, cholesterol, and other substances. This narrowing restricts the flow of blood, oxygen, and nutrients to the heart muscle, leading to symptoms such as chest pain (angina) and shortness of breath. This is the primary mechanism behind coronary artery disease.
Choice C Reason:
This choice is essentially a repetition of Choice B and is correct for the same reasons. The narrowing of the coronary arteries due to plaque buildup leads to insufficient blood flow, causing the heart muscle to receive less oxygen and nutrients.
Choice D Reason:
Manifestations of coronary artery disease are not due to the dilation of coronary arteries. Instead, they are due to the narrowing of these arteries. Increased blood flow and pressure are not typical causes of CAD symptoms. The primary issue is the restricted blood flow due to narrowed arteries.
Choice E Reason:
While it is true that the heart and coronary arteries can weaken over time, leading to poor perfusion and angina, this statement does not accurately describe the primary mechanism of coronary artery disease. The main issue in CAD is the narrowing of the arteries due to plaque buildup, which restricts blood flow to the heart muscle.
Correct Answer is A
Explanation
Choice A Reason:
A history of myocardial infarction (heart attack) and the need for stent placement are significant risk factors for developing atrial flutter. Atrial flutter is often associated with structural heart disease, including coronary artery disease, which can lead to myocardial infarction. The damage to the heart muscle and the changes in the heart’s electrical system following a myocardial infarction can predispose a person to atrial flutter.
Choice B Reason:
While a family history of atrial flutter can indicate a genetic predisposition to arrhythmias, it is not as strong a risk factor as having a history of myocardial infarction and stent placement. Genetic factors can play a role, but they are typically less influential compared to direct cardiac events.
Choice C Reason:
Recovering from an illness that caused vomiting and diarrhea is not a direct risk factor for atrial flutter. These conditions can lead to electrolyte imbalances, which might temporarily affect heart rhythm, but they do not typically cause atrial flutter.
Choice D Reason:
Increased stress can contribute to various health issues, including heart problems, but it is not a primary risk factor for atrial flutter. Chronic stress can exacerbate existing heart conditions, but it is not as significant a risk factor as a history of myocardial infarction.
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