Exam 1 Review:  Chapter 17:  Clinical Terminology

hypoxia - A deficiency in the amount of oxygen reaching body tissues; causes vary from inadequate oxygen in the atmosphere to problems in ventilation, gas exchange, blood circulation, or the presence of toxic substances such as carbon monoxide.

hyperoxia - An excess in the amount of oxygen reaching body tissues; causes vary from episodes of hyperventilation to clinical treatments with oxygen enriched breathing to exposure to increased oxygen pressures in hyperbaric chambers.

leukocytosis - An abnormally large increase in the number of white blood cells in the blood, often occurring during an acute infection or inflammation and also seen in many leukemias; generally a WBC > 11,000 cells/mm³ in adults, slightly higher in children.

leukopenia - An abnormally low number of white blood cells in the circulating blood; generally a WBC < 4,000 cells/mm³ in adults, slightly higher in children..

 1.