A nurse is performing discharge teaching for a client who has seizures and a new prescription for phenytoin. Which of the following statements by the client indicates a need for further teaching?

The priority nursing action is to notify the provider of the client's allergy because shellfish allergy may indicate an allergy to iodine, which is commonly used as a contrast dye in cardiac catheterization. This could cause a severe allergic reaction or anaphylaxis during the procedure, which could be life-threatening. The provider may need to order a different type of contrast dye or premedicate the client with antihistamines or steroids to prevent an allergic reaction.

a. Ask the client if any other foods cause such a reaction is wrong because it is not the priority action and it does not address the potential risk of iodine allergy.

c. Notify the dietary department of the client's allergy is wrong because it is not relevant to the cardiac catheterization and it does not prevent an allergic reaction during the procedure.

d. Atach a wrist band indicating the client's allergy is wrong because it is not sufficient to alert the provider or the catheterization team of the client's allergy and it does not prevent an allergic reaction during the procedure.

Impaired tissue perfusion is a nursing diagnosis that indicates a decrease in oxygen and nutrient delivery to the tissues, resulting in cellular dysfunction and potential tissue damage or necrosis. It is the priority nursing diagnosis for a client who has varicose veins with ulcerations and lower extremity edema, as these are signs of chronic venous insufficiency, which is a condition in which the veins in the legs fail to return blood to the heart effectively, causing blood to pool and stagnate in the lower extremities. This leads to increased venous pressure, inflammation, and impaired wound healing, which can cause skin breakdown, infection, and tissue necrosis. The nurse should monitor the client's vital signs, peripheral pulses, capillary refill, skin color, temperature, and sensation, and implement interventions to improve venous return and prevent further complications, such as elevating the legs, applying compression stockings, encouraging ambulation, administering medications, and providing wound care.

Alteration in body image. This is a nursing diagnosis that indicates a negative perception or dissatisfaction with one's physical appearance or function. It may be applicable for a client who has varicose veins with ulcerations and lower extremity edema, as these may affect their self-esteem and social interactions. However, it is not the priority nursing diagnosis for this client, as it does not pose an immediate threat to their health or safety.

Alteration in activity tolerance. This is a nursing diagnosis that indicates a decrease in the ability to perform physical activities without experiencing fatigue, dyspnea, or other symptoms. It may be applicable for a client who has varicose veins with ulcerations and lower extremity edema, as these may limit their mobility and endurance. However, it is not the priority nursing diagnosis for this client, as it does not pose an immediate threat to their health or safety.

Impaired skin integrity. This is a nursing diagnosis that indicates a disruption or damage to the epidermis or dermis layers of the skin. It is applicable for a client who has varicose veins with ulcerations and lower extremity edema, as these can cause skin breakdown and infection. However, it is not the priority nursing diagnosis for this client, as it is a consequence of impaired tissue perfusion, which is the underlying problem that needs to be addressed first.