IV Fluids - Anaesthetics

Question 1

What is normal plasma osmolarity ?

Answer 1

298 MOSML/L

Question 2

What happens to a cell when a soloution is hypotonic ?

Answer 2

Cell swells

Question 3

What happens to a cell when soloution is Hypertonic ?

Answer 3

Cellular dehydration

Question 4

If you were to infuse Glucose 5%, what would its distribution in the body be ?

Answer 4

60% into Intracellular
30% to interstitial and lymphatics.
10% into plasma volume.

Question 5

If you were to infuse NaCl 0.18% and Glucose 4% what would the distribution be within the body compartments ?

Answer 5

45% in the intracellular compartment.
45% in the interstitial and lymphatic compartment.
10% in the plasma volume.

Question 6

If you were to infuse saline 0.9% into a patient what would be its distribution within the body compartments ?

Answer 6

75% in interstitial and lymphatic compartment.

25% in the plasma volume.

Question 7

If you were to infuse a balanced crystaloid into a patient what would its distribution within the body compartments be ?

Answer 7

75% in the interstitial and lymphatic compartments.

25% in the plasma volume.

Question 8

If you were to infuse a colloid IV into a pt. what would the distribution in the body compartments be ?

Answer 8

100% to the plasma volume.

Question 9

Give 3 examples of crystaloid IVs

Answer 9

5% dextrose
0.9% saline
Hartmans soloution

Question 10

Give 3 examples of Colloid IVs

Answer 10

Gelatins
Starches
Albumin/Blood products

Question 11

How do you measure a pts. body fluid ?

Answer 11

Oesophageal doppler
Pulmonary artery catheter.
IVC collapsibility