Causes

Common causes include:

• Anxiety
• Fever
• Hyperventilation

Any lung disease that leads to shortness of breath can also cause respiratory alkalosis.

Symptoms

The symptoms may include:

• Dizziness
• Light-headedness
• Numbness of the hands and feet

Exams and Tests

The health care provider will perform a physical exam. Tests that may be done include:

• Arterial blood gas, which measures oxygen and carbon dioxide levels in the blood
• Chest x-ray
• Pulmonary function test

Treatment

Treatment is aimed at the condition that causes respiratory alkalosis. Breathing into a paper bag -- or using a mask that causes you to re-breathe carbon dioxide -- sometimes helps reduce symptoms.

Outlook (Prognosis)

What will happen depends on the condition that is causing the respiratory alkalosis.

Possible Complications

Seizures may occur if the alkalosis is extremely severe. This is very rare.

When to Contact a Medical Professional

Call your health care provider if you have any symptoms of lung disease, such as chronic cough or shortness of breath.

Alternative Names

Alkalosis - respiratory

References

Seifter JL. Acid-base disorders. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 120.

Updated: 4/13/2012

Reviewed by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.