Obstetrics & gynaecology

Flaw in many home pregnancy tests can return false negative results

Each year, women in the U.S. rely on some 20 million home pregnancy tests to learn potentially life-altering news. Despite marketing claims that such tests are 99 percent accurate, research at Washington University School ...

Medical research

A possible blood test for early-stage Alzheimer's disease

A large team of researchers affiliated with a host of institutions across South Korea has developed a possible blood test to detect the early stages of Alzheimer's disease in patients who have yet to exhibit symptoms. In ...

Medications

FDA warns against use of preowned or unauthorized test strips

(HealthDay)—The U.S. Food and Drug Administration is warning patients not to use preowned test strips or test strips not authorized for sale in the United States because of possible infection or inaccurate results that ...

Cancer

Blood-based colon cancer screen shows promise

If caught early, nearly all cases of colon cancer are curable. Though this should make screening tests straightforward, colon cancer screening suffers from a paradoxical combination of low compliance rates and overdiagnosis.

Diseases, Conditions, Syndromes

Space-enabled mobile laboratory ready for medical emergencies

A laboratory that enables first responders to combat biological hazards and infectious diseases rapidly and safely has demonstrated its strengths during a simulated biological incident conducted in Belgium.

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Blood test

A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a needle, or via fingerprick.

Blood tests are used to determine physiological and biochemical states, such as disease, mineral content, drug effectiveness, and organ function. Although the term blood test is used, most routine tests (except for most haematology) are done on plasma or serum, instead of blood cells.

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