Final answer:
The FDA has set safety limits for aluminum in parenteral nutrition solutions to minimize toxicity, recommending that PN solutions contain no more than 25 mcg/L of aluminum for patients with impaired kidney function.
Step-by-step explanation:
The question refers to the FDA limit for aluminum in PN (parenteral nutrition) solutions. Although the reference given speaks to the FDA regulation for lead in ceramics, the actual regulation for aluminum is a separate matter. The USA's Food and Drug Administration has indeed established safety limits for aluminum exposure due to potential toxicity associated with its accumulation, especially in patients with impaired kidney function or pre-term infants receiving parenteral nutrition therapy. Aluminum can contaminate PN solutions either during manufacturing or from components of the solution. To minimize aluminum exposure, the FDA recommends that PN solutions should not contain more than 25 micrograms per liter (mcg/L) of aluminum when administered to patients with impaired kidney function, and that the amount of aluminum at the time of administration should be stated on the label for all PN solutions.