The nurse prepares to administer benztropine to a client knowing that it can be used to treat which diagnoses? Select all that apply.

Rationale: A. GERD: Benztropine is an anticholinergic used primarily for neurological conditions and does not treat gastroesophageal reflux disease. While anticholinergics can reduce GI motility, they are not indicated for GERD management due to limited efficacy and risk of side effects. B. Extrapyramidal symptoms: Benztropine helps manage extrapyramidal symptoms, such as dystonia, akathisia, and parkinsonism, which often occur as side effects of antipsychotic medications. Its anticholinergic action restores the balance between acetylcholine and dopamine in the CNS, reducing abnormal movements. C. Parkinson's disease: Benztropine is used to treat Parkinson’s disease by reducing tremors and muscle rigidity. It works by inhibiting cholinergic activity, helping restore neurotransmitter balance disrupted in Parkinson’s and improving motor function. D. Alzheimer's: Benztropine is not indicated for Alzheimer’s disease. In fact, anticholinergic drugs can worsen cognitive impairment in Alzheimer’s patients by further reducing acetylcholine levels in the brain. E. Allergic reaction: Benztropine does not have antihistamine properties and is not used for allergic reactions. Antihistamines or corticosteroids are the appropriate treatments for allergy management, not anticholinergic antiparkinsonian agents.