A nurse is collecting data from a client who has Parkinson's disease and has been taking levodopa for several weeks. Which of the following
statements by the client indicates that the medication is effective?
"I have noticed that my memory has improved since beginning this medication."
"I have noticed that I do not have as many seizures since I started taking this medication."
"I have noticed that my mouth is not as dry since I began taking this medication."
"I have noticed that I do not shake as much as I used to."