Respiratory alkalosis
Respiratory alkalosis occurs when increased ventilation removes CO2 faster than it is produced. Eventually a new steady state is reached at a lower pCO2.
Causes
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Hypoxia |
Intrinsic pulmonary disease, altitude, heart failure, cyanotic congenital heart disease |
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Pulmonary receptor stimulation |
Pneumonia, pulmonary embolism, asthma, pulmonary oedema |
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Drugs |
Salicylates, catecholamines, theophylline |
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CNS disorders |
Subarachnoid haemorrhage, Cheyne-Stokes ventilation |
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Miscellaneous |
Psychogenic hyperventilation, fever, recovery from metabolic acidosis |
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