A nurse is assessing a client who has obstructive sleep apnea. Which of the following findings should the nurse expect?

Choice A reason: Obstructive sleep apnea (OSA) causes intermittent airway obstruction, leading to hypoxia and hypercapnia during sleep. This triggers cerebral vasodilation and increased intracranial pressure, resulting in morning headaches. These headaches are a common symptom of OSA, as the brain responds to reduced oxygen and elevated carbon dioxide, disrupting normal sleep and causing vascular changes. Choice B reason: Nausea is not a primary symptom of obstructive sleep apnea. While gastrointestinal symptoms can occur in various conditions, OSA primarily affects respiratory and cardiovascular systems, leading to symptoms like snoring, daytime fatigue, and headaches. Nausea may be secondary to other comorbidities but is not directly associated with OSA’s pathophysiology. Choice C reason: Hypotension is not typically associated with obstructive sleep apnea. OSA often leads to hypertension due to sympathetic activation from repeated hypoxic episodes, which increase catecholamine release and vascular resistance. Hypotension may occur in other conditions, but OSA’s cardiovascular impact typically elevates blood pressure, making this an incorrect finding. Choice D reason: Constipation is not a direct symptom of obstructive sleep apnea. OSA primarily affects respiratory and sleep patterns, causing symptoms like snoring, fatigue, and headaches. While chronic conditions may indirectly affect gastrointestinal motility, constipation is not a hallmark finding of OSA, which focuses on airway obstruction and its systemic effects.