Body Fluids And Blood Flashcards
What % is intracellular fluid?
40
What % is interstitial fluid?
15
What % is plasma space volume fluid?
5
How many litres is intracellular fluid
23 l
How many litres is extra cellular fluid
19
How to measure plasma volume?
Somthing that doesn’t cross capillaries:
Evans blue
Labelled insulin
Albumin
How to measure ecs volume?
Something that doesn’t enter the cell easily:
Na
Sucrose
How to measure total body water?
3h20
Difference between osmolarity and osmolality?
Osmolarity- 1 osmolarity per litre
Osmolality- 1 osmolarity per kg, total no of ions in solution
What’s the osmolarity of plasma?
290 moms/litre
What is crystaloid osmotic pa?
Small diffusable ions, na, cl
What are the different plasma proteins and how much of each is present?
1- albumin: 48g/litre
2-alpha, beta, gamma globulins: 0.7 -13g/l each
3-fibrinogen: 3G/litre
What’s the purpose of fibrinogen?
Heamestatsis
What’s the purpose of the globulins?
Transport
Heamostasis
Immune system
What’s the purpose of albumin?
Plasma oncotic pa
Transport
Buffering