A client asks the nurse if it is safe to take a glucosamine supplement. The nurse should assess for which of the following potential contraindications?

A. Limit each of the client's visitors to 1 hr per day: Visitor restrictions for clients with sealed radiation implants typically focus on limiting cumulative exposure to radiation rather than a strict daily time limit. The exact duration may vary, but monitoring personal exposure is more critical for staff safety.

B. Remove dirty linens from the room after double bagging: For sealed radiation implants, the radioactive source remains contained, and linens are not highly radioactive. Standard precautions are sufficient, so special double-bagging is not required unless the linens are contaminated with bodily fluids.

C. Wear a dosimeter film badge while in the client's room: Staff who care for clients with sealed radiation implants must wear a dosimeter to monitor cumulative radiation exposure. This ensures that occupational safety limits are not exceeded and provides documentation of exposure levels, which is a key safety measure in the plan of care.

D. Ensure family members remain at least 1 m (3.2 feet) from the client: Family members may need limited exposure, but strict distance alone is not sufficient for safety or required for all types of sealed implants. Staff exposure monitoring via dosimeter is more critical, as they spend more time in the room and are at greater risk for cumulative exposure.

A. Urine specific gravity of 1.028 (1.005 to 1.03): A urine specific gravity in this range is within normal limits, indicating concentrated urine. In diabetes insipidus, urine is typically very dilute with a specific gravity below 1.005, reflecting excessive water loss, so this finding does not indicate DI.

B. Urine output of 250 mL/hr: Excessive urine output is a hallmark of diabetes insipidus, especially in the context of a recent head injury. High-volume, dilute urine (polyuria) occurs due to a deficiency of antidiuretic hormone or kidney insensitivity to it. This finding alerts the nurse to the early development of DI and the need for intervention.

C. Serum sodium of 115 mEq/L (136 mEq/L to 145 mEq/L): Low sodium indicates hyponatremia, which is not typical of DI. In fact, DI usually causes hypernatremia due to free water loss, making this finding inconsistent with the expected laboratory changes in DI.

D. Blood glucose of 198 mg/dL (less than 200 mg/dL): Mildly elevated blood glucose may indicate stress hyperglycemia but is unrelated to the pathophysiology of diabetes insipidus. Glucose levels do not provide a reliable indication of DI development.