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Respiratory alkalosis is a medical condition in which increased respiration elevates the blood pH beyond the normal range (7.35–7.45) with a concurrent reduction in ...
Respiratory alkalosis is caused by hyperventilation, [2] resulting in a loss of carbon dioxide. Compensatory mechanisms for this include release of hydrogen ion from tissue buffers and excretion of bicarbonate in the kidneys, both of which lower blood pH . [ 3 ]
The body normally attempts to compensate for this homeostatically, but if this fails or is overridden, the blood pH will rise, leading to respiratory alkalosis. This increases the affinity of oxygen to hemoglobin and makes it harder for oxygen to be released into body tissues from the blood. The symptoms of respiratory alkalosis include ...
The respiratory brainstem centers can only compensate for metabolic acid-base disturbances (metabolic acidosis and metabolic alkalosis). Renal compensation is needed to balance respiratory acid-base syndromes (respiratory acidosis and respiratory alkalosis). The kidneys can compensate for both, respiratory and metabolic acid-base imbalances.
An excess of acid is called acidosis or acidemia, while an excess in bases is called alkalosis or alkalemia. The process that causes the imbalance is classified based on the cause of the disturbance (respiratory or metabolic) and the direction of change in pH (acidosis or alkalosis). This yields the following four basic processes:
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For the clinical diagnosis of CNH, it is essential that the symptoms, particularly respiratory alkalosis, persist while the patient is both awake and asleep. The presence of hyperventilation during sleep excludes any possible emotional or psychogenic causes for the sustained hyperventilation. [8]
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