Which statements should be included when teaching a client about potential side effects of oxybutynin?

Rationale: A. "You may experience abdominal cramping right after taking the drug.": Oxybutynin primarily acts as an anticholinergic to relax the bladder detrusor muscle. While gastrointestinal effects are possible, abdominal cramping is not a common or expected side effect and is not a primary teaching point. B. "You may notice that your mouth is dry.": Dry mouth is a frequent anticholinergic side effect of oxybutynin due to inhibition of salivary gland secretions. Clients should be informed about this effect and strategies to manage it, such as sipping water or using sugar-free gum, to maintain comfort and oral hygiene. C. "You should urinate less frequently.": Oxybutynin reduces urinary urgency and frequency by relaxing the bladder muscle, but it does not eliminate the need to urinate. Teaching should focus on symptom management rather than creating the expectation of complete suppression of urination. D. "You may notice weight gain when you start taking this drug.": Weight gain is not a typical side effect of oxybutynin. Clients should be taught about anticholinergic effects like dry mouth, constipation, and blurred vision rather than metabolic changes like weight gain.