Why Are Elderly Patients at Increased Risk for Adverse Medication

Why are elderly patients at increased risk for adverse medication reactions? Select all that apply.

A) The elderly tend to be on many medications at the same time.
B) The elderly tend to have declining organ function.
C) The elderly tend to have a high rate of comorbid diseases.
D) The elderly tend to frequently use commercially prepared medication organizing tools.
E) The elderly tend to have a high body mass index requiring larger doses of some medications.