A charge nurse is providing teaching to a newly licensed nurse on how to clean surfaces contaminated with blood. Which of the following agents should the nurse include in theteaching?

- A. Clothing the newborn in light cotton is not recommended because it can block the light from reaching the skin, which is necessary for the treatment of hyperbilirubinemia through phototherapy.
- B. Checking the newborn's temperature every 8 hours is not frequent enough; during phototherapy, it is important to monitor the newborn's temperature more frequently to ensure they do not become too cold or too warm as a result of the therapy.
- C. Administering water between feedings is not recommended as it can interfere with the newborn's feeding schedule and nutrition; breast milk or formula provides adequate hydration unless otherwise indicated by a healthcare provider.
- D. Placing the newborn 45 cm (18 in) from the light source is the correct intervention. This distance allows for optimal exposure to the light while ensuring the safety and comfort of the newborn, as recommended in clinical guidelines for effective phototherapy.

A. Serum calcium levels are not directly indicative of hypervolemia.

B. A urine specific gravity of 1.001 indicates dilute urine, which is a common finding in hypervolemia as the kidneys attempt to excrete excess fluid.

C. Serum sodium levels within the normal range (e.g., 138 mEq/L) are not indicative of hypervolemia.

D. Urine pH of 6.1 is within the normal range and does not specifically indicate hypervolemia.