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Questions and Answers
What is true about crystalloids when given in sufficient amounts?
What is true about crystalloids when given in sufficient amounts?
- They are less effective than colloids in restoring intravascular volume.
- They are just as effective as colloids in restoring intravascular volume. (correct)
- They are not effective in restoring intravascular volume.
- They are more effective than colloids in restoring intravascular volume.
What is required to replace an intravascular volume deficit when using crystalloids?
What is required to replace an intravascular volume deficit when using crystalloids?
- Two times the volume needed when using colloid
- Five times the volume needed when using colloid
- Three to four times the volume needed when using colloid (correct)
- The same volume as colloid
What is a benefit of using colloid solutions?
What is a benefit of using colloid solutions?
- Severe intravascular fluid deficits can be more rapidly corrected. (correct)
- They take longer to administer.
- They are less effective than crystalloids.
- They are more expensive than crystalloids.
What is a complication associated with rapid administration of large amounts of crystalloids?
What is a complication associated with rapid administration of large amounts of crystalloids?
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What is a consequence of marked tissue edema?
What is a consequence of marked tissue edema?
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Study Notes
Crystalloids vs Colloids in Restoring Intravascular Volume
- Crystalloids are equally effective as colloids in restoring intravascular volume when given in sufficient amounts.
- When using colloids, the volume needed to replace an intravascular volume deficit is typically 3-4 times less than with crystalloids.
- Colloid solutions can rapidly correct severe intravascular fluid deficits more efficiently.
Risks of Rapid Administration of Large Amounts of Crystalloids
- Rapid administration of large amounts of crystalloids (>4-5L) is associated with a higher frequency of tissue edema.
- Marked tissue edema can impair oxygen transport, tissue healing, and return of bowel function following major surgery.
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