Question

Which of the following is a result of injecting a hypertonic solution into the vascular space?

a. there is a net movement of water into the vascular space
b. there is a net movement of contrast media out of the vascular space
c. there is a net movement of water out of the vascular space
d. there is nothing noteworthy about injecting

Answer 1

Injecting a hypertonic solution into the vascular space causes water to move out of the cellular space, leading to increased blood volume and potential cellular dehydration and shrinkage.

Step-by-step explanation:

Effect of Hypertonic Solutions on Vascular Space

When a hypertonic solution is injected into the vascular space, there is a resultant net movement of water out of the cells into the surrounding fluids. This is because the extravascular fluids, which now have a higher concentration of solutes due to the hypertonic injection, draw water from the cells in an attempt to achieve osmotic balance. The water movement from the intracellular space to the extracellular space increases blood volume but may also cause cellular dehydration and shrinkage.

Option 'a', stating that there is a net movement of water into the vascular space, is not correct in this context. Rather, the correct answer is 'c', that there is a net movement of water out of the cellular space (vascular space), leading to dehydration due to the injection of a hypertonic solution.