ventilation/perfusion mismatch


Medical dictionary. 2011.

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  • Ventilation-perfusion inequality — (also known as Ventilation Perfusion Mismatch) is when certain groups of alveoli experience a decrease in ventilation which causes a higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2). The inequality refers to… …   Wikipedia

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  • Acute lung injury — (ALI) is a diffuse heterogeneous lung injury characterized by hypoxemia, non cardiogenic pulmonary edema, low lung compliance and widespread capillary leakage. ALI is caused by any stimulus of local or systemic inflammation, principally sepsis.… …   Wikipedia

  • Hypoxemia — Hypoxaemia (or hypoxemia) is a deficiency in the concentration of dissolved oxygen in arterial blood. A frequent error is made when the term is used to describe poor tissue diffusion as in hypoxia. It is possible to have a low oxygen content (e.g …   Wikipedia

  • Positive airway pressure — A typical CPAP machine houses the air pump in a case lined with sound absorbing material for quieter operation. A hose carries the pressurized air to a face mask or nasal pillow …   Wikipedia

  • Respiratory failure — is a medical term for inadequate gas exchange by the respiratory system. Respiratory failure can be indicated by observing a drop in blood oxygenation (hypoxemia) and/or a rise in arterial carbon dioxide (hypercapnia), which can be written as… …   Wikipedia

  • Liquid breathing — Intervention MeSH D021061 Liquid breathing is a form of respiration in which a normally air breathing organism breathes an oxygen rich liquid (such as a perfluorocarb …   Wikipedia

  • Respiratory acidosis — Infobox Disease Name = PAGENAME Caption = Davenport diagram DiseasesDB = 95 ICD10 = ICD10|E|87|2|e|70 ICD9 = ICD9|276.2 ICDO = OMIM = MedlinePlus = eMedicineSubj = med eMedicineTopic = 2008 MeshID = D000142 Respiratory acidosis is acidosis… …   Wikipedia

  • Hepatopulmonary syndrome — In medicine, hepatopulmonary syndrome is a syndrome of shortness of breath and hypoxemia (low oxygen levels in the blood of the arteries) caused by vasodilation (broadening of the blood vessels) in the lungs of patients with liver disease.… …   Wikipedia

  • Hypoxic drive — The hypoxic drive is a form of respiratory drive in which the body uses oxygen chemoreceptors instead of carbon dioxide receptors to regulate the respiratory cycle.Normal respiration is driven mostly by the levels of carbon dioxide in the… …   Wikipedia

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