A nurse is assessing a client who has restrictive cardiomyopathy (RCM). Which of the following statements should the nurse cue in the client?
Thickening of the walls of the ventricles.
Stretching of the ventricles.
Thickening of the ventricular walls and septum.
When the ventricular tissue becomes fibrous and fatty.
The Correct Answer is D
Choice A reason:
Thickening of the walls of the ventricles is not typically associated with restrictive cardiomyopathy (RCM). This condition is more characteristic of hypertrophic cardiomyopathy (HCM), where the heart muscle becomes abnormally thick, making it harder for the heart to pump blood. In RCM, the walls of the ventricles are usually not thickened but become rigid due to fibrosis or infiltration, which restricts the heart’s ability to fill with blood during diastole.
Choice B reason:
Stretching of the ventricles is more commonly seen in dilated cardiomyopathy (DCM), not restrictive cardiomyopathy. In DCM, the heart’s ventricles become enlarged and weakened, which impairs the heart’s ability to pump blood efficiently. RCM, on the other hand, involves stiffening of the ventricular walls without significant dilation.
Choice C reason:
Thickening of the ventricular walls and septum is a hallmark of hypertrophic cardiomyopathy (HCM), not restrictive cardiomyopathy. In HCM, the thickened walls can obstruct blood flow and lead to various complications. RCM is characterized by the stiffening of the ventricular walls due to fibrosis or infiltration, which restricts diastolic filling.
Choice D reason:
When the ventricular tissue becomes fibrous and fatty is the correct description of restrictive cardiomyopathy (RCM). In RCM, the heart’s ventricles become stiff and less elastic due to fibrosis (scarring) or infiltration by abnormal substances, such as amyloid proteins. This rigidity impairs the heart’s ability to fill properly during diastole, leading to symptoms of heart failure
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
The correct answer is a. Insulin is stable at room temperature for one month.
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.
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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