The fraction of inspired oxygen (FIO2) increases with:Question 8Answera.forceful inhalation.b.an increase in respirations.c.increased tidal volume.d.supplemental oxygen

factors that affecting oxygenation and give reference link below

4) Which of the following will increase alveolar PO2?a) increase in metabolism and no change in alveolar ventilationb) breathing air with 15% oxygen at sea levelc) increase in alveolar ventilation matched by an increase in metabolismd) increased alveolar ventilation with no change in metabolisme) carbon monoxide poisoning

During the “slow” phase of the excess post-exercise oxygen consumption (EPOC) a factor contributing to increased oxygen uptake is:Group of answer choicesIncreased FFA oxidationLactate oxidationCreatine phosphate resynthesis

By creating a water current that continuously replenishes water over the respiratory surfaces, many invertebrates that lack specialized respiratory organs increase the diffusion of oxygen byMultiple choice question.maximizing the surface area for diffusion.maximizing Δp in Fick's law.decreasing the distance over which gases travel.reducing the Δp in Fick's law.

5) Which of the following will cause the largest increase in systemic arterial oxygensaturation in the blood?a) an increase in red cell concentration (hematocrit) of 20%b) breathing 100% O2 in a healthy subject at sea levelc) an increase in arterial PO2 from 40 to 60 mmHgd) hyperventilation in a healthy subject at sea levele) breathing a gas with 5% CO2, 21% O2, and 74% N2 at sea level