Subject
Female; Humans; Pregnancy; Adult; Risk Factors; Acute Disease; Oxygen Inhalation Therapy; Patient Admission; Emergency Service; decision making; Radiography; Thoracic; Hospital; Blood Gas Analysis; Oxygen/blood; Airway Obstruction/diagnosis; Forced Expiratory Volume; Recurrence/prevention & control; Adrenal Cortex Hormones/therapeutic use; Asthma/diagnosis/therapy; Bronchodilator Agents/therapeutic use; Magnesium Sulfate/therapeutic use; Oximetry; Peak Expiratory Flow Rate