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: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable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
This blood test measures the percentage of hemoglobin proteins in your blood that have glucose attached to it — giving you and your health care providers a picture of your average blood sugar over the past two to three months.
—
Dr. Jamin Brahmbhatt, CNN Money, 14 July 2025
Now, though, a simple blood test to help diagnose Alzheimer’s has been approved by the U.S. Food and Drug Administration.
—Teri Sforza, Oc Register, 8 July 2025
Even though the Noblesville boy is fully vaccinated, blood tests show that his weak immune response leaves him vulnerable to infection.
—Jordan Smith, IndyStar, 2 July 2025
The confusion began with a non-invasive prenatal blood test, often taken in the first trimester.
—Daniella Gray, MSNBC Newsweek, 17 June 2025
See All Example Sentences for blood test
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Dr. Jamin Brahmbhatt, CNN Money, 14 July 2025
Now, though, a simple blood test to help diagnose Alzheimer’s has been approved by the U.S. Food and Drug Administration.
—Teri Sforza, Oc Register, 8 July 2025
Even though the Noblesville boy is fully vaccinated, blood tests show that his weak immune response leaves him vulnerable to infection.
—Jordan Smith, IndyStar, 2 July 2025
The confusion began with a non-invasive prenatal blood test, often taken in the first trimester.
—Daniella Gray, MSNBC Newsweek, 17 June 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 21 Jul. 2025.
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