Hyperventilation is not caused by which of the following?
1.Anxiety
2.High altitude
3.Pulmonary hypertension
4.Psychotic illness
Solution:
Physiological causes of ventilation are anxiety,altitude ,pregnancy and exercise. Other common pathological causes include hypoxemia ,pulmonary condition like pneumonia,pulmonary embolism cronchial asthma,cardia conditions like congestive heart failure and hypotension,acidosis hepatic failure psychogenic salicylates,fever and sepsis