A nurse is caring for a client whose partner died in a fire that destroyed their home. Which of the following actions should the nurse take first?

A is incorrect because massaging bony prominences on the client's left side can increase the risk of skin breakdown and pressure ulcers. The nurse should avoid applying pressure to areas with impaired circulation or sensation.

B is correct because supporting the client's left arm on a pillow while sitting can prevent edema, contractures, and nerve damage. The nurse should also encourage the client to perform active and passive range of motion exercises on their left arm.

C is incorrect because positioning the bedside table on the client's left side can discourage the client from using their right side, which can lead to neglect and learned nonuse. The nurse should position the bedside table on the client's right side and encourage them to reach for items with their right hand.

D is incorrect because placing the client's cane on their left side while ambulating can cause instability and falls. The nurse should place the cane on the client's right side and instruct them to move their left leg and cane together, followed by their right leg.

• 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 humans. Humans can incorporate Neu5Gc from their diet into their own cells, which can trigger an immune response and the production of AGNA.
• AGNA have been associated with various inflammatory and autoimmune diseases, such as atherosclerosis, rheumatoid arthritis, Crohn's disease, and cancer. AGNA may also play a role in the rejection of bioprosthetic heart valves, which are made from animal tissues that contain Neu5Gc.
• 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 expression. 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 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.