試題詳解

4. A patient has had a serious accident and lost a lot of blood. In an attempt to replenish body fluids, distilled water, equal to the volume of blood lost, is transferred directly into one of his veins. What will be the most probable result of this transfusion?
(A) The patient's red blood cells will swell because the blood fluid is hypertonic compared to the cells.
(B) The patient's red blood cells will swell because the blood fluid is hypotonic compared to the cells.
(C) The patient's red blood cells will shrivel up because the blood fluid is hypertonic compared to the cells.
(D) The patient's red blood cells will burst because the blood fluid is hypertonic compared to the cells.
(E) It will have no unfavorable effect as long as the water is free of viruses and bacteria.