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  2. Arterial blood gas test - Wikipedia

    en.wikipedia.org/wiki/Arterial_blood_gas_test

    An arterial blood gas (ABG) test, or arterial blood gas analysis (ABGA) measures the amounts of arterial gases, such as oxygen and carbon dioxide. An ABG test requires that a small volume of blood be drawn from the radial artery with a syringe and a thin needle , [ 1 ] but sometimes the femoral artery in the groin or another site is used.

  3. Pulmonary embolism - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_embolism

    Pulmonary embolism (PE) is a blockage of an artery in the lungs by a substance that has moved from elsewhere in the body through the bloodstream . [6] Symptoms of a PE may include shortness of breath , chest pain particularly upon breathing in, and coughing up blood . [ 1 ]

  4. Ventilation/perfusion scan - Wikipedia

    en.wikipedia.org/wiki/Ventilation/perfusion_scan

    A defect in the perfusion images requires a mismatched ventilation defect to indicate pulmonary embolism. [8] In the ventilation phase of the test, a gaseous radionuclides such as xenon-133, krypton-81m, or technetium-99m DTPA in an aerosol form is inhaled by the patient through a mouthpiece or mask that covers the nose and mouth. [10]

  5. Respiratory failure - Wikipedia

    en.wikipedia.org/wiki/Respiratory_failure

    Physical exam findings often found in patients with respiratory failure include findings indicative of impaired oxygenation (low blood oxygen level). These include, but are not limited to, the following: Accessory muscle use in breathing or other signs of respiratory distress [6] Altered mental status (eg. confusion, lethargy) [6]

  6. Fat embolism syndrome - Wikipedia

    en.wikipedia.org/wiki/Fat_embolism_syndrome

    In 1861, Zenker first reported on the autopsy findings of fat droplets found in the lungs of a railway worker who died due to severe thoraco-abdominal crush injury. In 1873, Bergmann diagnosed fat embolism clinically in a patient with fractured femur.

  7. Ventilation/perfusion ratio - Wikipedia

    en.wikipedia.org/wiki/Ventilation/perfusion_ratio

    This finding is typically associated with pulmonary embolism (where blood circulation is impaired by an embolus). Ventilation is wasted, as it fails to oxygenate any blood. A high V/Q can also be observed in emphysema as a maladaptive ventilatory overwork of the undamaged lung parenchyma. Because of the loss of alveolar surface area, there is ...

  8. Arterial embolism - Wikipedia

    en.wikipedia.org/wiki/Arterial_embolism

    However, pulmonary embolism is generally classified as a form of venous embolism, because the embolus forms in veins. Arterial embolism is the major cause of infarction (which may also be caused by e.g. arterial compression, rupture or pathological vasoconstriction ).

  9. Ventilation–perfusion mismatch - Wikipedia

    en.wikipedia.org/wiki/Ventilation–perfusion...

    Ventilation Scan is normal but perfusion is abnormal indicating any obstruction to the blood flow (perfusion), may be because of the pulmonary embolism obstructing the flow. Both scans are abnormal. It may be found in pneumonia or COPD. Results are reported in following way: Normal - No abnormality found. Low Probability - Chances of blood clot ...