DefinitionRespiratory alkalosis is a condition marked by low levels of carbon dioxide in the blood due to breathing excessively.See also: AlkalosisAlternative NamesAlkalosis - respiratoryCauses, incidence, and risk factorsCommon causes include:AnxietyFeverHyperventilationAny lung disease that leads to shortness of breath can also cause respiratory alkalosis.SymptomsThe symptoms may include:DizzinessLight-headednessNumbness of the hands and feetSigns and testsArterial blood gas (measures levels of oxygen and carbon dioxide in the blood; in respiratory alkalosis, the level of carbon dioxide is too low)Chest x-rayPulmonary function testTreatmentTreatment is aimed at the condition that causes respiratory alkalosis. Breathing into a paper bag -- or using a mask that causes you to re-breathe car