Final answer:
Adverse effects of atropine eye drops, a muscarinic antagonist, can include blurred vision, dry mouth, and systemic anticholinergic symptoms like tachycardia and urinary retention.
Step-by-step explanation:
A student has asked what findings a nurse should expect as an adverse effect of atropine eye drops. Atropine, a component of certain plants like belladonna or deadly nightshade, is a muscarinic antagonist that blocks the muscarinic receptors in the iris causing pupil dilation (mydriasis). When used in eye examinations, it can cause systemic anticholinergic side effects, given its role in suppressing parasympathetic function. Therefore, deleterious effects can include blurred vision, difficulty in focusing (accommodation), and potential for increased intraocular pressure. Atropine is also used as an antidote in nerve agent poisoning due to its actions as an antagonist to muscarinic acetylcholine receptors. However, an overdose of atropine can lead to symptoms such as dry mouth, increased heart rate (tachycardia), urinary retention, constipation, confusion, and, in severe cases, hallucinations.