While assessing a client with overactive bladder, the nurse discovers the client also has the following health problems. Which health problem could be made worse by the anticholinergic medication tolterodine?

Choice A reason: Asthma is not directly worsened by tolterodine. Although anticholinergics can affect bronchial secretions, tolterodine does not significantly impact airway resistance or bronchospasm in typical doses used for overactive bladder. Choice B reason: Diabetes is not a contraindication for tolterodine. While autonomic neuropathy in diabetics may affect bladder function, tolterodine does not exacerbate glycemic control or diabetic complications directly. Choice C reason: Hypotension is not a common adverse effect of tolterodine. The drug may cause mild dizziness due to anticholinergic effects, but it does not typically lower blood pressure significantly. Choice D reason: Glaucoma, specifically narrow-angle glaucoma, is a contraindication for tolterodine. Anticholinergic medications can increase intraocular pressure, potentially precipitating an acute angle-closure crisis, which is a medical emergency.