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: a laboratory test in which a sample of blood is withdrawn from the body to analyze the level of substances or cells (such as glucose, hemoglobin, or white blood cells) that indicate the presence or probable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 new blood tests are recommended only if a patient refuses a colonoscopy or a stool test.
—
Andrea Dwyer, The Conversation, 30 May 2026
The former first lady said her husband’s doctor had told them that, according to the American Urological Association, men over 70 do not require routine blood tests to screen for prostate cancer, because the disease is slow-growing.
—Brooke Migdon, PEOPLE, 29 May 2026
Dawicki says it’s diagnosed by looking at a patient’s history, doing a physical exam and running a blood test to check for antibodies.
—Helen Carefoot, Flow Space, 27 May 2026
The American Cancer Society is adding some new testing options to its screening guideline for colorectal cancers – and for the first time, that includes a blood test.
—Jacqueline Howard, CNN Money, 27 May 2026
See All Example Sentences for blood test
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Andrea Dwyer, The Conversation, 30 May 2026
The former first lady said her husband’s doctor had told them that, according to the American Urological Association, men over 70 do not require routine blood tests to screen for prostate cancer, because the disease is slow-growing.
—Brooke Migdon, PEOPLE, 29 May 2026
Dawicki says it’s diagnosed by looking at a patient’s history, doing a physical exam and running a blood test to check for antibodies.
—Helen Carefoot, Flow Space, 27 May 2026
The American Cancer Society is adding some new testing options to its screening guideline for colorectal cancers – and for the first time, that includes a blood test.
—Jacqueline Howard, CNN Money, 27 May 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 4 Jun. 2026.
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