Tonicity of IV Fluids

Question 1

Tonicity is ?

Why do you think about?

Concentration is always based on ?

Answer 1

Is the concentration of that IV solution .

Think about the number of particles that R in the IV solution

The concentration is always base on normal intracellular fluid

Question 2

Isotonic

Answer 2

Tonicity or concentration of dissolved particles is equal to ICF(intracellular fluid)

Will see this very frequently. They are more commonly used because there is a variety of things they can be used for

Question 3

4 Example of isotonic solutions

Answer 3

0.9% saline (NS)

Lactated ringer’s solution

5% dextrose in water (5%DW)
**also used as a hypotonic solution after it is administered because the body absorbs the dextrose BUT it is considered isotonic)

5% dextrose in 0.225% (D/1/4NS)

Question 4

Describe isotonic fluids

Isotonic fluids are use for 5 patients who are

1. )
2. )
3. )
4. )
5. )

Answer 4

Isotonic fluid is the same as the fluid inside of the cells

1. )dehydrated,
2. )shock,
3. )fluid volume deficit,
4. ) to increase blood pressure
5. )to accompany blood administration

Question 5

Hypotonic

Answer 5

Hypotonic fluid is less concentrated than the cell. This would cause water to move into the cell

What happens is water is drawn into the cells when a hypotonic solution is given

So the cells will swell up with fluid

Example : .45 %saline also called 1/2 normal saline

Question 6

Never give hypotonic solution to patient that have

1. )
2. )
3. )

Answer 6

Never give hypotonic solution to patient that have

1. )liver disease,
2. )burns or who have some sort of trauma because u don’t want those cells to swell up

3.)Never give you pt with increase ICP because u don’t want the cells in brain to swell up when there’s already increase pressure up there

Question 7

Hypertonic

Answer 7

Hypertonic fluid is more concentrated then the cell. This will cause water to move out of the cell

So it actually drawn water out of the cells causing the cells to shrink

Question 8

Hypertonic solution 4examples

Answer 8

5% dextrose in lactated ringer

5% dextrose in 0.45% Saline

5% dextrose in 0.9% saline

10% dextrose in water

Question 9

Never give hypertonic fluids two patients that are dehydrated such as ___________

The tonicity Will you call the cells to ______ drying them out

Answer 9

Never give hypertonic fluids to patients that are dehydrated such as diabetic Ketoacidosis

The tonicity Will you call the cell to shrink . drying them out

Question 10

Why should hypotonic fluids be closely monitored?

Answer 10

Because a rapid increase in fluid shifting into cell can call cellular and cerebral Edema.

Question 11

What 3 reasons would you give a hypotonic fluid?

Answer 11

Dehydration,

hypernatremia, low blood pressure

Question 12

Why would you give me a hypertonic fluid?

Answer 12

Hyponatremia, nutrition

Question 13

Hypertonic fluid should be closely monitored because?

Answer 13

Because it causes electrolyte imbalance and dehydration

Question 14

Before you start IV fluids assess clients?

Answer 14

IV, make sure is patent

Question 15

If the IV is ever infiltrated what would you see?

Answer 15

Cool or warmth ,

swollen

tender

painful at the site