A nurse in the labor and delivery unit is reviewing medications for a group of clients. Which of the following medications places the fetus at risk for teratogenic effects?

- 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. Using the injection port farthest from the IV catheter insertion site is not necessary for administering an IV bolus of medication and may not be practical depending on the setup of the IV tubing.

B. Occluding the IV tubing above the injection port prevents the bolus medication from flowing into the continuous IV infusion, ensuring that the medication is delivered directly to the patient.

C. Checking for blood return after medication administration is not relevant in this context, as albumin 5% is administered intravenously and does not require blood return.

D. Flushing the IV tubing with a heparinized solution is not necessary for administering an IV bolus of medication and may not be appropriate for all medications.