A patient comes to the emergency room suffering from severe dehydration. You are shocked to hear an orderly suggest, “We should just give him an IV of water to speed up his rehydration!” You quickly intervene, knowing this could cause grave harm. Why?
a. An IV of pure water would increase the tonicity of the blood so much that the red blood cells would shrivel from water loss.
b. Pure water is known to be toxic and must be heavily diluted before given to patients.
c. An IV of pure water would dilute the solute concentration of the plasma so much that the red blood cells would take on too much water through osmosis and burst.
d. Pure water would make the cells and the plasma isotonic, and the patient would not rehydrate at all.
c. An IV of pure water would dilute the solute concentration of the plasma so much that the red blood cells would take on too much water through osmosis and burst.
You might also like to view...
About 250 million years ago Earth’s continents merged into one supercontinent called ____
a. Nazca b. Eurasia c. Laurasia d. Gondwana e. Pangaea
Which one of the following terms applies to the phylum Mollusca?
A. asymmetry B. diploblastic C. pseudocoelomate D. Parazoa E. protostome
Fungi usually obtain food by
A) producing antibiotics that internally destroy bacteria. B) absorbing it and then digesting it within fungal cells. C) chemosynthesis. D) digesting it externally and then absorbing it. E) photosynthesis.
The primary role of producers is to recycle nutrients in an ecosystem.
Answer the following statement true (T) or false (F)