On the basis of current knowledge of neurotransmitter effects, a nurse anticipates that the treatment plan for a patient with memory difficulties may include medications designed to:

A) inhibit GABA production.
B) increase dopamine sensitivity.
C) decrease dopamine at receptor sites.
D) prevent destruction of acetylcholine.

Increased acetylcholine plays a role in learning and memory. Preventing the destruction of acetylcholine by acetylcholinesterase results in higher levels of acetylcholine, with the potential for improved memory. GABA is known to affect anxiety level rather than memory. Increased dopamine causes symptoms associated with schizophrenia or mania rather than improves memory. Decreasing dopamine at receptor sites is associated with Parkinson disease rather than improving memory.