N262 OXYGENATION EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++

N262 OXYGENATION EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS GRADED A++ oxygention requires the integration of what 3 systems respiratory, hematologic, and cardiovascular oxygenation definition the movement and transfer of gases between the atmosphere and the blood ventilation/breathing movement of air in and out of lungs oxygen enters lungs carbon dioxide excreted by the lungs alveolar-capillary gas exchange/diffusion diffusion of O2 and CO2 between alveoli and pulmonary capillaries transport of O2 and CO2/perfusion blood flow of O2 and CO2 between tissues and lungs oxygen-carrying capacity of the blood 97% of O2 is carried to tissues by combining the Hgb in RBC's systemic diffusion movement of O2 and CO2 between the systemic capillaries and tissues factors affecting respiratory function age environment lifestyle health status medications stress developmental factors affecting respiratory function premature infants infants/toddlers school-aged children young middle-aged adults elderly respiration in older adults reduced lung expansion, less alveolar inflation difficulty expelling ucus or foreign material declining immune response GERD-increasing risk for aspiration chemoreceptors respond more slowly diminished ability to increase ventilation when oxygenation demands increase lifestyle factors affecting respiration nutrition exercise smoking substance abuse/medications occupational and environmental injury or surgery pain chronic/acute illnesses additional factors that can influence pulmonary function environment: altitude, heat, cold, air pollution