A client is receiving mesalamine 800 mg by mouth three times a day. Which assessment should the nurse perform to assess the effectiveness of the medication?

Troponin I and CK-MB are cardiac enzymes that are released into the bloodstream when the heart muscle is injured or necrotic. Elevated levels of these enzymes indicate that the client has suffered a myocardial infarction (MI) or heart atack. The damaged heart tissue can impair the electrical conduction system of the heart and cause abnormal heart rhythms or dysrhythmias, which can be life-threatening. The PN should monitor the client's cardiac status closely and report any changes to the charge nurse.

The other options are not correct because:

1. The client is not at risk for pulmonary embolism, which is a blockage of a pulmonary artery by a blood clot or other material. Pulmonary embolism does not cause elevated cardiac enzymes, but it can cause chest pain, shortness of breath, and hypoxia.
2. The client is not at risk for recurrent long-term angina pain, which is chest pain caused by reduced blood flow to the heart muscle due to narrowed or blocked coronary arteries. Angina pain does not cause elevated cardiac enzymes, but it can be a warning sign of an impending MI.
3. The lab results do not indicate risk factors for transient ischemic atack (TIA), which is a temporary interruption of blood flow to a part of the brain due to a clot or plaque. TIA does not cause elevated cardiac enzymes, but it can cause neurological symptoms such as weakness, numbness, or speech difficulties.

- Anti-Glycan Neu5Gc Antibodies (AGNA) are antibodies that recognize a carbohydrate antigen called N- glycolylneuraminic acid (Neu5Gc), which is found in animal-derived foods and tissues, but not in humans¹². Humans can incorporate Neu5Gc from their diet into their own cells, which can trigger an immune response and the production of AGNA¹².

- AGNA has been associated with various inflammatory and autoimmune diseases, such as atherosclerosis, rheumatoid arthritis, Crohn's disease, and cancer¹². AGNA may also play a role in the rejection of bioprosthetic heart valves, which are made from animal tissues that contain Neu5Gc¹.

- A client with carcinoma in situ of the left breast is a client with a non-invasive form of breast cancer, where the abnormal cells are confined to the ducts or lobules of the breast. This type of cancer has a high chance of cure with surgery and/or radiation therapy.

- Increased levels of AGNA in a client with carcinoma in situ of the left breast may indicate that the client has an increased risk of inflammation and infection, as AGNA can activate the complement system and recruit inflammatory cells to the site of Neu5Gc expression¹². This may impair the healing process and increase the chances of complications after surgery or radiation therapy.

- Therefore, the practical nurse (PN) should anticipate that the client's plan of care will include the initiation of changes in infection control measures, such as prophylactic antibiotics, wound care, sterile dressing changes, and monitoring for signs and symptoms of infection (such as fever, redness, swelling, pain, or pus). These measures will help to prevent or treat any potential infection and promote wound healing.

Therefore, option A is the correct answer, while options B, C, and D are incorrect.

Option B is incorrect because increasing the client's dietary servings of fruits and vegetables may not have a significant impact on the levels of AGNA or Neu5Gc in the client's body.

Option C is incorrect because limiting the client's fluid intake to avoid hemodilution may not be necessary or beneficial for the client's condition.

Option D is incorrect because avoiding the client's exposure to cold temperatures may not be relevant or helpful for the client's condition.