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laboratory diagnosis
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Pink and purple bacterial colonies of Escherichia coli growing on the surface of a MacConkey agar plate inside a petri dish.
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laboratory diagnosis

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Pink and purple bacterial colonies of Escherichia coli growing on the surface of a MacConkey agar plate inside a petri dish.
Escherichia coli and other organisms that cause urinary tract infections can be isolated and identified from urine samples using laboratory culture techniques.

Laboratory diagnosis involves using tests to identify diseases or disorders. Physicians analyze blood, urine, and other bodily fluids to measure various constituents, which can indicate illness. For instance, blood tests can reveal hemoglobin levels, red and white blood cell counts, and platelet counts, providing insights into conditions like anemia or infections. Chemical analyses of blood serum can detect issues with the liver, kidneys, or metabolic disorders like diabetes.123

Microscopic examination of blood cells, along with specific stains, helps identify parasites or abnormal cell types. Immunologic tests, such as blood typing and antibody detection, are crucial for safe blood transfusions and diagnosing infectious diseases. Additionally, tests for enzymes, hormones, and genetic markers aid in diagnosing conditions ranging from heart disease to hormonal imbalances. The accuracy of these tests depends on their sensitivity and specificity in correctly identifying individuals with and without a disease.132

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5 Britannica Sources
  1. blood - Laboratory examination of blood
  2. diagnosis - Laboratory tests
  3. animal disease - Tests as diagnostic aids
  4. list of medical tests and diagnostic procedures
  5. diagnosis

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