A nurse is assessing a client for hypoxemia during an asthma attack. Which of the following manifestations should the nurse expect?

A. Agitation: During an asthma attack, hypoxemia reduces oxygen delivery to the brain, often leading to restlessness, irritability, or agitation as early neurologic signs. This can progress to confusion or lethargy if untreated. B. Dysphagia: Difficulty swallowing is not a typical manifestation of hypoxemia. Dysphagia is more commonly linked to neurologic disorders, esophageal obstruction, or throat pathology. C. Nausea: Nausea is not a direct sign of hypoxemia in asthma. It may occur secondary to medication effects or coughing, but it is not a primary indicator of oxygen deprivation. D. Hypotension: Severe hypoxemia may eventually cause hypotension due to poor oxygen delivery and cardiovascular compromise, but this is a late and less common sign. Early signs like agitation appear first.