Types Of Fluids

Question 1

Remarks on colloids

Answer 1

Large insoluble molecules
Blood products are colloids
Higher osmotic pressure
Immune response?
Potential harm with capillary leak disorders (sepsis, ARDS)

Question 2

Composition of lactated ringers

Answer 2

Osmolality: 273
Na: 130
Cl: 109
K: 4
Ca: 3
Lactate: 28

Question 3

Uses of 3% normal saline

Answer 3

Cerebral edema

Severe, symptomatic hyponatremia

Question 4

Remarks regarding dextrose-containing fluids

Answer 4

As dextrose is metabolized -> decreased osmolality
Dextrose adds calories
*5% = 50g/L = 170 cal/L
*10% = 100g/L = 340cal/L

Question 5

D5W

Answer 5

Isotonic initially
5%dextrose-water
Osmolarity 253
Eventually becomes free water (hypotonic)

Question 6

Preparations of albumin

Answer 6

5% - Osmo 309

25% - osmo 812