The nurse is performing education to a client diagnosed with Alzheimer's disease. Which of the following contraindications for anticholinergic would the nurse include for donepezil (Aricept)?

Choice A reason: Intestinal obstruction is not a contraindication for donepezil, an acetylcholinesterase inhibitor used in the management of Alzheimer's disease. Donepezil works by increasing levels of acetylcholine in the brain, which can help improve cognitive function. While gastrointestinal side effects can occur, they do not constitute a contraindication related to intestinal obstruction. This choice is not relevant to the specific contraindications of donepezil. Choice B reason: Dementia, specifically Alzheimer's disease, is the primary indication for donepezil, not a contraindication. This medication is prescribed to help manage symptoms of Alzheimer's by enhancing cholinergic function. Therefore, stating dementia as a contraindication is incorrect, as it is the very condition donepezil is intended to treat. Choice C reason: Glaucoma is a contraindication for the use of anticholinergic medications. Donepezil increases cholinergic activity, which can exacerbate symptoms in patients with glaucoma, particularly angle-closure glaucoma. The increased acetylcholine levels can lead to increased intraocular pressure, worsening the condition. Therefore, it is crucial to identify and manage this contraindication when prescribing donepezil. Choice D reason: Diarrhea is a potential side effect of donepezil rather than a contraindication. Donepezil can increase gastrointestinal motility and secretions, leading to symptoms like diarrhea. However, this does not preclude the use of the medication but rather necessitates monitoring and potential symptomatic management. Therefore, diarrhea is not a contraindication for donepezil.