Correct Answer: C

Rationale: The correct instruction for a patient starting radiation therapy for esophageal cancer is to wear clothing over the area of radiation treatment. This helps to prevent irritation and protect the skin. Removing dye markings after each treatment (choice A) is unnecessary and not typically part of the patient's self-care. Applying a warm compress (choice B) can exacerbate skin irritation caused by radiation. Using a washcloth to bathe the treatment area (choice D) can potentially irritate the skin further, making it important to avoid.

Correct Answer: C

Rationale: The correct answer is C. A serum creatinine level of 5 mg/dL is significantly elevated and indicates the need for hemodialysis to help filter waste products from the blood. Elevated creatinine levels suggest impaired kidney function and the inability to effectively filter waste from the body. Choices A, B, and D are within normal ranges and do not indicate the need for immediate hemodialysis in a client with chronic kidney disease.

Correct Answer: C

Rationale: When toxicity from magnesium sulfate occurs, the nurse should administer calcium gluconate IV as it is the antidote for magnesium sulfate toxicity. Positioning the client supine may not address the toxicity issue. Administering dextrose 5% is not the appropriate intervention for magnesium sulfate toxicity. Methylergonovine is used to manage postpartum hemorrhage and is not indicated for magnesium sulfate toxicity.

Correct Answer: B

Rationale: A flat anterior fontanel indicates improved hydration in infants, as dehydration typically causes sunken fontanels.

Correct Answer: B

Rationale: The correct answer is B. Ileostomy stomas typically drain liquid continuously, unlike colostomies. This continuous drainage is a key characteristic that clients should understand postoperatively. Choice A is incorrect because ensuring medications are enteric-coated is not directly related to understanding ileostomy care. Choice C is incorrect as changing the pouch system every two weeks is not a general rule and may vary depending on the individual's needs. Choice D is incorrect because the stoma size can change during the healing process and clients should be informed about this possibility.