Health Library

The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.

Spanish Translation

Transcutaneous oxygen and carbon dioxide monitor

A transcutaneous oxygen and carbon dioxide monitor is a device that measures the oxygen and carbon dioxide levels in a baby's blood. This test does not require a doctor or a nurse to take a blood sample from the baby.

The monitor is connected to the baby by a lead (wire), the end of which has a small circle that is held in place with a small round adhesive patch. The circle heats the skin, which allows it to measure blood oxygen and carbon dioxide content. The machine translates this information into a constant readout and has an alarm for readings that are above or below safe levels.

Current as of: May 1, 2026

Author: WebMD Ignite Staff

Clinical Review Board
All WebMD Ignite education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

This information does not replace the advice of a doctor. WebMD Ignite, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.