Final answer:
When a patient does not complete their entire course of antibiotics, they are creating a possibility of future drug resistance. Patients' nonadherence to antibiotic treatment can lead to the development of antibiotic-resistant bacteria.
Step-by-step explanation:
When a patient does not complete their entire course of antibiotics, they are creating a possibility of future drug resistance. Antibiotics are used by patients of different ages, and the fact that their ages differ can increase resistance. Patients' nonadherence to antibiotic treatment can lead to the development of antibiotic-resistant bacteria, making it more difficult to treat diseases.