A nurse is teaching a client who has a new diagnosis of aplastic anemia. Which of the following information should the nurse include in the teaching?

A. Troponin is a lipid whose levels reflect the risk for coronary artery disease: This statement is incorrect. Troponin is not a lipid, and its levels do not reflect the risk for coronary artery disease. Troponin is a protein associated with muscle tissue.

B. Troponin is an enzyme that indicates damage to brain, heart, and skeletal muscle tissues: While troponin indicates damage to muscle tissues, it is specifically associated with cardiac muscle, not brain or skeletal muscle tissues.

C. Troponin is a protein that helps transport oxygen throughout the body: This statement is incorrect. While proteins in the blood may contribute to oxygen transport, troponin's primary role is in muscle contraction, particularly in the heart.

D. Troponin is a heart muscle protein that appears in the bloodstream when there is damage to the heart: This is the correct answer. Troponin is a protein found in cardiac muscle cells, and when there is damage to the heart, such as during a myocardial infarction, troponin is released into the bloodstream. Elevated troponin levels in the blood are indicative of myocardial injury or infarction.

A. Restrict the client's fluid intake: There is typically no need to restrict fluid intake after a cardiac catheterization. Adequate hydration is important for preventing complications and promoting recovery.

B. Ambulate the client 1 hr following the procedure: While early ambulation is encouraged in many cases, the timing may vary based on the specific protocols of the healthcare provider. It is important to follow the healthcare provider's orders regarding post-catheterization ambulation.

C. Instruct the client to perform range-of-motion exercises to his lower extremities: Range-of-motion exercises are beneficial to prevent complications such as venous stasis and deep vein thrombosis. However, the specific exercises and timing may vary. It is important to follow the healthcare provider's instructions.

D. Perform neurovascular checks with vital signs: This is the correct answer. After a cardiac catheterization accessed through the femoral artery, it is crucial to monitor neurovascular status in the affected extremity. Assessing peripheral pulses, skin color, temperature, and capillary refill, along with monitoring vital signs, helps detect any signs of complications such as bleeding or vascular compromise.