’53 880i HW3 gas exchange 818 – Compatibility Mode Home X, f V [a Paste 6 Insert Draw Times New. WI Qvabxzxz Design v Layout References Mailings…

can you please help to solve these problems? am not undressing the problems

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‘53 880i HW3 gas exchange 818 – Compatibility Mode HomeX,f V [a Paste6 Insert Draw Times New… WI Qvabxzxz Design v Layout References Mailings Review View fishare Geommenrs v A“ AV AaBchDdE AaBIzcwm AaBchDr Colorful List… AaBchDdl AaBchDdEe AaBchD< ) fl Subtitle 1: Sensitivity ~b=V AeBchDdENormal(1) (4 pts) In class, we have made the point that the solubility of oxygen in water (or blood plasma) isrelatively low and that hemoglobin helps increase the amount of oxygen that can be carried by bloodso that cells in large, active animals can get enough oxygen to support their relatively high energy demands. This problem asks you to quantify the help that hemoglobin provides in humans. Emphasis Title Styles , Pane g A” V (H Headlng 1 Strong A. The partial pressure of oxygen in the lung alveoli is a bit lower than in ambient air, being about 100mm of mercury, or 0.13 Ayn (it is lower than the partial pressure in air mainly because oxygen iscontinually taken up by the alveolar capillaries and carbon dioxide is continually released into thealveoli). In cell-free blood plasma (or a saline solution formulated to match key characteristics ofblood plasma), which lacks red blood cells and therefore lacks hemoglobin, the concentration of oxygen will equilibrate at 37° Q about 0.3 ml 02/100 ml plasma. For whole blood (with hemoglobin),however, the 02 concentration is around 20 ml 07/ 100 m1 whole blood. By what factor does the presence of hemoglobin enhance oxygen solubility in blood? Show your work. B. Given the above, imagine that you are an emergency room physician treating a patient who lost aquarter of his blood in an accident. A paramedic replaced this lost blood with saline solution to keephis blood pressure up. The saline solution contains no hemoglobin since it contains no red blood cells.The patient is short of breath and oxygen levels in his blood are dangerously low. If for some reasonyou must choose between administering pure (100%) oxygen or giving a transfusion of whole blood torestore the red blood cell count, which would you expect to be more helpful? Address this decision byanswering the questions below. Show your work and be as quantitatively explicit as possible. i. Under normal conditions, what percentage of blood oxygen content is accounted for by oxygendissolved in the plasma and what percentage is bound to hemoglobin? By how much do these percentages change after the patient has a quarter of his blood volume replaced withsaline solution? Page ’I of 4 1332 words [13 English (United States) r Focus n a, .=__= E _ _kJ— + 163%

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