The nurse is supervising the care of the patient who suffered an embolic stroke of the right middle cerebral artery after a clot formed on the patient’s prosthetic mitral valve. Which instruction does the nurse provide to the unlicensed assistive personnel that will be most important to prevent bacterial endocarditis?

The 22-month-old child is brought to the emergency department with large, blistered burns to both buttocks by his mother’s boyfriend. The mother’s boyfriend states the child has been in his care while the mother is away on a business trip. He reports the child accidentally fell into the bath during the preparation before the water had had a chance to cool. The child’s second-degree wounds are dressed after intravenous morphine is administered. The nurse works with the healthcare team to perform which intervention? 

Which aspect of delegation is the most crucial to ensure patient safety?