Skip to main content
CSTSetup
Dictionary

hyperventilation

Breathing faster or deeper than the body needs, so too much carbon dioxide is breathed out.

hy-per-ven-tih-LAY-shun noun

Word parts

What it means

Losing carbon dioxide makes the blood less acidic (respiratory alkalosis). The person may feel dizzy, light-headed and short of breath and have tingling around the mouth and in the hands. It is common with anxiety, pain and panic, and also occurs with fever, lung problems and metabolic acidosis.

For the nurse

Stay with the client, speak calmly and coach slow breathing through pursed lips. Look for a physical cause, such as low oxygen, before deciding it is anxiety.

Remember it

Hyper breathing blows off acid; hypo breathing keeps it in.

At a glance

Spanishhiperventilación
Also writtenhyperventilating, hyperventilate

Easy to confuse with

hypoventilation

Breathing that is too slow or too shallow to remove enough carbon dioxide from the body.

Related terms

arterial blood gas

A blood test from an artery that measures oxygen, carbon dioxide, bicarbonate and the blood's pH.

hyper-

A word beginning that means above, over or more than normal.

panic attack

A sudden wave of intense fear that peaks within minutes.

hypoventilation

Breathing that is too slow or too shallow to remove enough carbon dioxide from the body.

Filed under

Look up another word