A nurse is providing care for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?

A. Intermittent pneumatic compression pumps: Intermittent pneumatic compression pumps can help improve circulation in the lower extremities by assisting with venous return. These devices inflate and deflate sequentially, promoting venous blood flow and reducing edema in clients with peripheral venous disease.

B. Ankle-brachial index test: The ankle-brachial index (ABI) test is a non-invasive vascular study used to assess peripheral arterial disease (PAD). It compares the blood pressure in the ankle with the blood pressure in the arm to evaluate arterial circulation.

C. Layered wraps: Layered wraps, such as compression bandages or stockings, are typically used in the management of venous insufficiency and venous ulcers. They are not as commonly utilized in peripheral venous disease, however, they may be beneficial for some clients with PVD.

D. Elevation of legs: Elevating the legs above the level of the heart can help reduce edema and improve venous return in clients with peripheral venous disease. Gravity assists in draining blood from the lower extremities back toward the heart, thereby reducing swelling and discomfort.

E. Exercise: Regular physical activity, particularly lower extremity exercises such as walking, can promote venous return and improve circulation in clients with peripheral venous disease. Exercise helps to pump blood back to the heart, reducing venous stasis and the risk of complications such as venous thrombosis.

A. Open-angle glaucoma: Open-angle glaucoma typically presents with increased intraocular pressure and gradual loss of peripheral vision, not with bright flashes of light and dark floating spots.

B. Macular degeneration: Macular degeneration is characterized by central vision loss, not by bright flashes of light and dark floating spots.

C. Meniere’s disease: Meniere’s disease is a disorder of the inner ear characterized by episodes of vertigo, hearing loss, and tinnitus. It does not typically cause bright flashes of light and dark floating spots in the visual field.

D. Retinal detachment: Trauma, such as being tackled while playing football, can lead to retinal detachment, which can manifest with symptoms such as bright flashes of light (photopsia) and dark floating spots (floaters) in the affected eye. This condition is considered a medical emergency and requires prompt evaluation and treatment to prevent permanent vision loss.