NOT FINISHED Body fluid compartments

Question 1

What is hypoatraemia

Answer 1

Shortage of sodium in bloodstream

Question 2

What can Total Body Water (TBW) be divided into?

Answer 2

Intracellular fluid (ICF)
-Inside all cells
-2/3 OF TBW

Extracellular fluid (ECF)
-Surrounds all cells
-1/3 of TBW
Divided into:

-Interstitial fluid ISF- between blood vessels and cells 3/4 of ECF
-Plasma- 1/4 of ECF
-Transcellular fluid (contained within epithelial lined spaces) approx 0.5L

Question 3

What are factors affecting TBW

Answer 3

Age, gender and % of body fat

60% in young men
50% in young women
80% in newborn

Question 4

Why is TBW lower in females than males?

Answer 4

Females have a higher percentage of adipose fat.

Question 5

What ions are more concentrated in extracellular fluid?

Answer 5

Sodium Na+
Chloride CL-
Bicarbonate
Calcium Ca++

Question 6

What ions are more concentrated in intracellular fluid?

Answer 6

Potassium K+
Protein
Phosphate and inorganic anions
Magnesium Mg++

Question 7

How can compartments be measured

Answer 7

X= amount of indicator
V= Volume of fluid
C= Final concentration

C= X/V
V= X/C