blood gas

American  

[bluhd gas] / ˈblʌd ˌgæs /

noun

1. a gas, as oxygen or carbon dioxide, that is dissolved in plasma.

2. a test to determine the pH and concentration of blood gases.

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blood gas Scientific  

1. Any of the dissolved gases in blood plasma, especially oxygen and carbon dioxide.

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Etymology

Origin of blood gas

First recorded in 1845–50

Example Sentences

“If you’re doing the combination of hyperventilation and breath holds, you’re shifting these blood gas levels up and down to the point that those shifts alone can have effects,” he said.

From Salon • Apr. 23, 2025

She sent him to the hospital for an arterial blood gas draw.

From Los Angeles Times • Feb. 20, 2024

Mr Johnson then asked Ms Letby about a blood gas record chart relating to one of the babies in this case, which was also found at her home.

From BBC • May 18, 2023

Previously, oxygen saturation was measured through a blood gas test that required samples from patients’ arteries.

From Washington Post • May 3, 2020

A cylinder of a gas mixture used for calibration of blood gas analyzers in medical laboratories contains 5.0% CO2, 12.0% O2, and the remainder N2 at a total pressure of 146 atm.

From Textbooks • Feb. 14, 2019