A nurse is contributing to the plan of care for a client who has hypernatremia. Which of the following interventions should the nurse recommend to include in the plan?

A. Use the client's left arm to obtain blood samples: This is correct as using the arm on the opposite side of the mastectomy helps avoid additional stress or injury to the affected arm, which can help prevent lymphedema.
B. Keep both arms below the level of the client's heart: This is not recommended as elevating the affected arm can help reduce swelling and promote lymphatic drainage.
C. Limit range-of-motion exercises with the affected arm: This is incorrect as range-of-motion exercises are important to prevent stiffness and promote circulation, which helps reduce the risk of lymphedema.
D. Obtain blood pressure readings using the client's right arm: This is incorrect as obtaining blood pressure on the affected side could increase the risk of lymphedema.

A. Have the client drink contrast medium: This is incorrect as contrast medium is typically not required for an esophagogastroduodenoscopy (EGD); it is used for other types of imaging studies.
B. Shave the client from axillae to groin: This is incorrect; shaving is not necessary for an EGD procedure.
C. Administer a cleansing enema: This is incorrect as an enema is generally not required for an EGD, which focuses on the upper gastrointestinal tract.
D. Ensure the signed consent is in the medical record: This is correct as ensuring that the consent form is signed and documented is crucial for legal and procedural reasons before performing an EGD.