In a healthy person at sea level, the oxygen saturation of haemoglobin in blood returning to the lungs is approximately:Question 44Answera.98%b.75%c.50%d.25%e.2%

Most of the oxygen in the blood is:Question 21Answera.Dissolved in the blood plasmab.Bound to the haem portion of haemoglobinc.Bound to plasma proteinsd.Bound to the globin portion of haemoglobine.Converted to bicarbonate

11. The "normal" oxygen saturation in older adults may be 90% or greater in arterial blood.1 pointTrueFalseMaybe

What is the normal range for resting oxygen saturation in healthy adults?Select one:a.92 to 100%b.90 to 100%c.95 to 100%d.80 to 100%

Which statement is true about the Oxygen - hemoglobin dissociation curve:Question 21Answera.Hemoglobin is likely to be fully saturated near resting cells/tissuesb.Hemoglobin is likely to be fully saturated near exercising cells/tissuesc.The curve would shift to the left when arterial CO2 is highd.The curve would shift to the right when body temperature decreasese.Hemoglobin stays nearly fully saturated at ≥70mmHg of PO2Clear my choice

The saturation of hemoglobin is __________Blank% at the arterial PO2 of 95 mmHg, and is __________Blank% at the venous PO2 of 40 mmHg.Multiple Choice50; 95100; 7550; 25