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: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable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
She was allowed to return home as the wait began for Harold's blood test results.
—
Peter Van Sant, CBS News, 5 Apr. 2026
The zoo's veterinary staff conducted a full medical evaluation, including blood tests, a CT scan, and a physical examination.
—Moná Thomas, PEOPLE, 3 Apr. 2026
Italian authorities have opened a double murder investigation following the deaths of a mother and her teenage daughter following a Christmas Eve meal last year, after prosecutors said preliminary blood tests showed the pair had the poison ricin in their systems.
—Barbie Latza Nadeau, CNN Money, 3 Apr. 2026
More Research Is Still Needed The study used a large, nationally representative sample and included imaging to assess liver scarring, which gives a clearer picture than blood tests alone.
—Emily Kay Votruba, EverydayHealth.com, 2 Apr. 2026
See All Example Sentences for blood test
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Peter Van Sant, CBS News, 5 Apr. 2026
The zoo's veterinary staff conducted a full medical evaluation, including blood tests, a CT scan, and a physical examination.
—Moná Thomas, PEOPLE, 3 Apr. 2026
Italian authorities have opened a double murder investigation following the deaths of a mother and her teenage daughter following a Christmas Eve meal last year, after prosecutors said preliminary blood tests showed the pair had the poison ricin in their systems.
—Barbie Latza Nadeau, CNN Money, 3 Apr. 2026
More Research Is Still Needed The study used a large, nationally representative sample and included imaging to assess liver scarring, which gives a clearer picture than blood tests alone.
—Emily Kay Votruba, EverydayHealth.com, 2 Apr. 2026
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 6 Apr. 2026.
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