blood test

noun

: a test of the blood

specifically : a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of a particular disease or medical condition (such as diabetes, cardiovascular disease, or cancer) or serve to indicate the degree of function of a specific organ (such as the liver or kidney)

Examples of blood test in a Sentence

He had a blood test, and the doctor who did it said his cholesterol was too high.

Recent Examples on the Web

In addition to a physical exam and blood tests, the patient will undergo brain imaging. —Katia Hetter, CNN, 7 Feb. 2025

Reed notified Trooper Justin Parker to respond to the hospital to make contact with Barrow and complete a search warrant for blood test results. —Steven Mross, arkansasonline.com, 5 Feb. 2025

What's next: Nucleus will use funds to develop a centralized health platform that integrates data from diverse sources like blood tests, wearables and microbiome analysis, Sadeghi says. —Aaron Weitzman, Axios, 30 Jan. 2025

Regular monitoring through imaging and blood tests to determine if your care plan needs adjusting Stable Phase Not every person with metastatic breast cancer has a stable phase. —Jennifer Welsh Published, Verywell Health, 30 Jan. 2025

Word History

First Known Use

1851, in the meaning defined above

Kids Definition

blood test

noun

: a test of the blood (as to detect the presence of disease-causing agents or determine the number of blood cells)

Medical Definition

blood test

noun

: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (as glucose, hemoglobin, or white blood cells) that indicate the presence or probable development of a particular disease or medical condition (as diabetes, cardiovascular disease, or cancer) or serve to indicate the degree of function of a specific organ (as the liver or kidney)