Intravenous Fluids : Nursing Course


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A commonly infused hypotonic solution is:

.45 sodium chloride

Rationale: A hypotonic solution puts more water in the serum that what is found inside of the cells. This results in water moving into the cells, which causes them to swell. .45 sodium chloride is a commonly used hypotonic solution in the medical setting. It may also have dextrose or potassium added to it in order to replace electrolytes that have been lost, usually through the gastrointestinal system. Hypotonic solutions are often given to patients to replace fluid volume, but should be stopped when a patient is able to drink enough to meet their fluid needs.


An example of a commonly used isotonic solution is:

.9 sodium chloride

Rationale: The most commonly used isotonic solutions are .9 sodium chloride, lactated ringers, and D5W. These fluids are given to expand circulating fluid volume and replace actual fluid loss. .9 normal saline is commonly given to patients because of its immediate ability to expand the volume of circulating blood. D5w is an isotonic solution in the bag, but becomes a hypotonic solution once it enters the bloodstream.


An example of a hypertonic solution is one that contains more than:

10% dextrose

Rationale:

The two different classifications of IV fluids are:

crystalloid and colloid

Rationale:

Fluid that is outside of the cells, such as intravascular fluid, interstitial fluid, and transcellular fluid is in the:

extracellular compartment

Rationale:

A crystalloid solution with an osmolarity higher than serum is:

hypertonic solution

Rationale:

A crystalloid solution that has an osmolarity lower than serum is:

hypotonic

Rationale:

Most fluid in the body is found in the:

intracellular compartment

Rationale:

A crystalloid solution that has an osmolarity about equal to serum is:

isotonic solution

Rationale:

Fluid moves between the intracellular and extracellular compartments through:

osmosis

Rationale:

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