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Also known as: Lactic Acid; L-Lactate; CSF Lactate
Formal name: Lactate

At a Glance

Why Get Tested?

To detect high levels of lactate in the blood, which may be an indication of lack of oxygen (hypoxia) or the presence of other conditions that cause excess production or insufficient clearing of lactate from the blood; this test is not meant to be used for screening for health status.

When to Get Tested?

When you have symptoms such as rapid breathing, nausea, and sweating that suggest a lack of oxygen or an abnormal blood pH (acid/base imbalance); when a health practitioner suspects that you may be experiencing sepsis, shock, heart attack, severe congestive heart failure, kidney failure, or inadequately treated (uncontrolled) diabetes; when a health practitioner suspects that you have inherited a rare metabolic or mitochondrial disorder

Sample Required?

A blood sample drawn from a vein in your arm; sometimes a blood sample collected from an artery and, rarely, a sample of cerebrospinal fluid collected from the spine

Test Preparation Needed?

You may be told to rest prior to sample collection. Rarely, fasting may be required.