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  2. International Classification of Diseases for Oncology

    en.wikipedia.org/wiki/International...

    The International Classification of Diseases for Oncology (ICD-O) is a domain-specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. This classification is widely used by cancer registries. It is currently in its third revision (ICD-O-3). ICD-10 includes a list of ...

  3. Median lethal dose - Wikipedia

    en.wikipedia.org/wiki/Median_lethal_dose

    The value of LD 50 for a substance is the dose required to kill half the members of a tested population after a specified test duration. LD 50 figures are frequently used as a general indicator of a substance's acute toxicity. A lower LD 50 is indicative of higher toxicity. The term LD 50 is generally attributed to John William Trevan. [2]

  4. New lung cancer screening guidelines include heavy smokers ...

    www.aol.com/lung-cancer-screening-guidelines...

    More than 80% of people whose lung cancer was caught early through screening were still alive after 20 years, according to research from the Icahn School of Medicine at Mount Sinai in New York ...

  5. Tumor marker - Wikipedia

    en.wikipedia.org/wiki/Tumor_marker

    Reflect the stage of cancer; By determining the stage of cancer, it's possible to give a prognosis and treatment plan. [3] Screening for cancers; No screening test is wholly specific, and a high level of tumor marker can still be found in benign tumors. The only tumor marker currently used in screening is PSA (prostate-specific antigen ...

  6. ICD-10 - Wikipedia

    en.wikipedia.org/wiki/ICD-10

    ICD-10 is the 10th revision of the International Classification of Diseases (ICD), a medical classification list by the World Health Organization (WHO). It contains codes for diseases, signs and symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or diseases. [1]

  7. Therapeutic index - Wikipedia

    en.wikipedia.org/wiki/Therapeutic_index

    It is desirous for the value of LD 50 to be as large as possible, to decrease risk of lethal effects and increase the therapeutic window. In the above formula, TI safety increases as the difference between LD 50 and ED 50 increases—hence, a higher safety-based therapeutic index indicates a larger therapeutic window, and vice versa.

  8. Immediately dangerous to life or health - Wikipedia

    en.wikipedia.org/wiki/Immediately_dangerous_to...

    It is calculated using the LD50 or LC50. [1] The Occupational Safety and Health Administration (OSHA) regulation (1910.134(b)) defines the term as "an atmosphere that poses an immediate threat to life, would cause irreversible adverse health effects, or would impair an individual's ability to escape from a dangerous atmosphere."

  9. Lethal dose - Wikipedia

    en.wikipedia.org/wiki/Lethal_dose

    The median lethal dose, LD 50 (abbreviation for "lethal dose, 50%"), LC 50 (lethal concentration, 50%) or LCt 50 (lethal concentration and time) of a toxin, radiation, or pathogen is the dose required to kill half the members of a tested population after a specified test duration.

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