Which of the following does not cause hyperventilation?
Anxiety
High altitude
Pulmonary hypeension
Psychotic illness
Physiological causes of ventilation are anxiety, altitude, pregnancy, and exercise. Other common pathological causes include hypoxemia, pulmonary conditions like pneumonia, pulmonary embolism, bronchial asthma, cardiac conditions like congestive hea failure and hypotension, acidosis, hepatic failure, psychogenic, salicylates, fever and sepsis. Ref: Pulmonary Function: A Guide for Clinicians By Gabriel Laszlo, 1994, Page 172 ; Harrison's 17th ed chapter 258