A nurse assesses patients on the medical-surgical unit. Which client is at greatest risk for developing obstructive sleep apnea?

Choice A reason: Obesity is the most significant risk factor for obstructive sleep apnea. Excess adipose tissue around the neck and pharynx can lead to airway narrowing during sleep, causing repeated episodes of apnea and hypoxia. Middle-aged individuals with obesity are at particularly high risk. Choice B reason: Pregnancy can cause mild sleep disturbances due to hormonal changes and physical discomfort, but it is not a major risk factor for obstructive sleep apnea unless accompanied by obesity or other comorbidities. Choice C reason: Gastroesophageal reflux disease (GERD) may worsen sleep quality but is not a direct risk factor for obstructive sleep apnea. While GERD and sleep apnea can coexist, GERD alone does not significantly increase the risk. Choice D reason: Older age and diabetes are associated with increased risk of central sleep apnea and other sleep disorders, but obstructive sleep apnea is more strongly linked to obesity and anatomical factors. Without obesity or other structural risk factors, this patient is less likely to be the highest risk.