Lancet, The

a short wide knife with a double-edged blade commonly used to make punctures and small incisions.

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  • Lancing device

    A device that holds a lancet firmly, and when triggered, moves the lancet linearly ahead to prick the skin in a controlled manner. Lancing devices usually can be adjusted to alter the depth that the lancet goes into the skin. The purpose is to obtain a small amount of capillary blood for testing. Also called […]

  • Landau-Kleffner syndrome

    A disorder with seizures starting in childhood in which the patient loses skills, such as speech, and develops behavior characteristic of autism. A major feature of the Landau-Kleffner syndrome (LKS) is the gradual or sudden loss of the ability to understand and use spoken language. All children with LKS have abnormal electrical brain waves that […]

  • Landry ascending paralysis

    A particularly virulent form of Guillain-Barre syndrome. The disorder often begins with a flu-like illness that brings on general physical weakness, but is then characterized by rapidly progressing paralysis that starts in the legs and arms, and may move on (ascend) to affect the breathing muscles and face. As with less severe forms of Guillain-Barre, […]

  • Landslide injury

    Rapidly moving water and debris that can lead to trauma; Broken electrical, water, gas, and sewage lines that can result in injury or illness; and Disrupted roadways and railways that can endanger motorists and disrupt transport and access to health care. Landslides are caused by disturbances in the natural stability of a slope. They can […]

  • Langerhans, islets of

    alpha cells that make glucagon, which raises the level of glucose (sugar) in the blood; beta cells that make insulin; delta cells that make somatostatin which inhibits the release of numerous other hormones in the body; and PP cells and D1 cells, about which little is known. Degeneration of the insulin-producing beta cells is the […]

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