(1 point). Listen.
A nurse is assisting the primary care provider to determine if a patient had a myocardial infarction.
Which laboratory values should the nurse check?

Choice A rationale:

Remodeling of arterial luminal walls is not a direct consequence of insulin resistance. Insulin resistance primarily affects glucose metabolism and can lead to hypertension through the activation of the renin-angiotensin-aldosterone system.

Choice B rationale:

Amino acid homocysteine is associated with cardiovascular disease, but it is not the primary mediator of insulin resistance or hypertension.

Choice C rationale:

Insulin resistance is associated with overactivity of the sympathetic nervous system and activation of the renin-angiotensin-aldosterone system. The renin-angiotensin-aldosterone system plays a significant role in regulating blood pressure, and its overactivity can contribute to hypertension.

Choice D rationale:

Increased afterload effect is a consequence of hypertension rather than a direct association with insulin resistance. Insulin resistance can lead to hypertension through various mechanisms, including sympathetic nervous system activation and renin-angiotensin-aldosterone system activation.

Choice A rationale:

The nurse should use the principle that the myocardium is rigid to guide nursing care for a patient with restrictive cardiomyopathy. Restrictive cardiomyopathy is characterized by the stiffening of the myocardium, which restricts the ability of the heart to fill with blood properly. This rigidity of the myocardium impairs diastolic function, leading to reduced cardiac output. Nursing care for patients with restrictive cardiomyopathy focuses on reducing symptoms and improving cardiac function. This involves strategies to reduce the workload on the heart, such as salt and fluid restriction, medications to manage heart failure symptoms, and possibly diuretics to reduce volume overload. Additionally, managing comorbid conditions and providing emotional support are essential components of care.

Choice B rationale:

Dilated myocardium is not a characteristic of restrictive cardiomyopathy. Dilated cardiomyopathy is a separate type of heart muscle disorder characterized by an enlarged and weakened left ventricle.

Choice C rationale:

Hypertrophied myocardium is not a characteristic of restrictive cardiomyopathy. Hypertrophic cardiomyopathy is a different type of heart muscle disorder characterized by thickening of the heart muscle, particularly in the left ventricle.

Choice D rationale:

Thickened myocardium is not typically associated with restrictive cardiomyopathy. Thickening of the myocardium is more commonly seen in hypertrophic cardiomyopathy.