The healthcare provider has decreased the dosage of a medication for a client who is malnourished. What is the nurse's correct understanding of the rationale for this action by the healthcare provider?

Higher amounts of free drug in the body may lead to toxicity.

Since the body's metabolism is slower, less drug is required.

Serum protein levels are higher than normal, requiring less medication.

The action is not correct since a malnourished person requires more medication to be effective.