To Reduce Brain Swelling by Pulling Water Out of Brain

question 34

Multiple Choice

To reduce brain swelling by pulling water out of brain cells, a substance can be injected intravenouslytoincrease the osmotic pressure of interstitial fluid. Which of the following properties must this substance lack in order to be effective?

• A) permeable to capillary endothelium
• B) nontoxic to neurons
• C) permeable to brain plasma membranes
• D) impermeable to brain plasma membranes
• E) soluble in water

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The reduction of a company’s workforce to lower expenses, often involving layoffs of employees as a measure to sustain or improve the business.