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: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable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
The test can detect trace amounts of minerals and toxic metals in their system, providing information at levels even smaller than a traditional blood test can find.
—
Christine Persaud, USA Today, 20 Oct. 2025
The fight against Alzheimer’s disease The FDA has cleared another blood test to help rule out Alzheimer’s disease in people showing symptoms.
—Alexandra Banner, CNN Money, 14 Oct. 2025
Veronica Ewers said nothing, despite all the signs, despite the blood test results staring back at her, telling her the hormones in her body were barely present.
—Megan Feringa, New York Times, 10 Oct. 2025
Scientists at the University of East Anglia (UEA) and Oxford BioDynamics have developed a highly accurate blood test to diagnose Chronic Fatigue Syndrome (CFS), also known as Myalgic Encephalomyelitis (ME/CFS).
—Neetika Walter, Interesting Engineering, 9 Oct. 2025
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Christine Persaud, USA Today, 20 Oct. 2025
The fight against Alzheimer’s disease The FDA has cleared another blood test to help rule out Alzheimer’s disease in people showing symptoms.
—Alexandra Banner, CNN Money, 14 Oct. 2025
Veronica Ewers said nothing, despite all the signs, despite the blood test results staring back at her, telling her the hormones in her body were barely present.
—Megan Feringa, New York Times, 10 Oct. 2025
Scientists at the University of East Anglia (UEA) and Oxford BioDynamics have developed a highly accurate blood test to diagnose Chronic Fatigue Syndrome (CFS), also known as Myalgic Encephalomyelitis (ME/CFS).
—Neetika Walter, Interesting Engineering, 9 Oct. 2025
See All Example Sentences for blood test
Cite this Entry
“Blood test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood%20test. Accessed 24 Oct. 2025.
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