Breathlessness on Low-Dose Clozapine with Normal Oxygen Saturation

Assessment and Management

• The British Thoracic Society recommends a hand-held fan directed at the face as first-line symptomatic treatment for breathlessness when oxygen saturation is normal 1
• Assess respiratory rate and work of breathing, as tachypnea may indicate distress despite normal oxygen saturation 1
• Consider arterial blood gas measurement if clinical concern persists despite normal pulse oximetry, as SpO2 may not reflect ventilation adequacy 1
• Target oxygen saturation of 94-98% is appropriate for patients without risk of hypercapnic respiratory failure 1, 2
• Oxygen therapy should only be used if SpO2 falls below 94% or if the patient has documented benefit from oxygen 1