a Hypotension: Blood pressure may drop significantly with loss of diastolic measurement Dyspnea: Labored breathing and tachypnea may occur. Seizure: The patient may experience tonic-clonic seizures。 Cough: This is usually a manifestation of dyspnea. Cyanosis: As hypoxia/hypoxemia progresses, circumoral and peripheral cyanosis and changes in mucous membranes may manifest◼ Hypotension: Blood pressure may drop significantly with loss of diastolic measurement. ◼ Dyspnea: Labored breathing and tachypnea may occur. ◼ Seizure: The patient may experience tonic-clonic seizures. ◼ Cough: This is usually a manifestation of dyspnea. ◼ Cyanosis: As hypoxia/hypoxemia progresses, circumoral and peripheral cyanosis and changes in mucous membranes may manifest