Fluid Balance

Question 1

What is Dehydration ?

Answer 1

The process of losing fluid; everyone in here is dehydrating

Question 2

What is Hypohydration?

Answer 2

Physiological state of ‘too little’ total body water

Question 3

What is Euhydration?

Answer 3

Physiological state of optimum ‘normal’ body water

Question 4

What is Hyperhydration?

Answer 4

Physiological state of ‘too much’ total body water

Question 5

What is Rehydration?

Answer 5

• The process of gaining fluid; i.e. drinking

Question 6

What is body fluid regulated at?

Answer 6

285 –295 mOsmol.kg-1 H2O

Question 7

What is extracellular regulated at?

Answer 7

135 – 145 mmol.L-1

Question 8

How much fluid is Intracellular Fluid?%

Answer 8

(60-70%)

Question 9

How much fluid is Extracellular Fluid?%

Answer 9

(30-40%)

Question 10

How much is intervascular? litres

Answer 10

(~3L)

Question 11

What is Intracellular dehydration?

Answer 11

Increase osmolality + decrease in volume

Question 12

What happens when overdrinking?

Answer 12

Urine production increased and AVP secretion reduced

Increase osmolality + Decrease in volume

Question 13

does dehydration affect performance?

Answer 13

Dehydration of 2-7% of body mass consistently decreased endurance performance, ranging from 7-60%

Question 14

What happens after drinking?

Answer 14

Decrease osmolality + increase in volume

Question 15

What are 3 types of Osmolality?

Answer 15

• Plasma
• Urine
• Saliva

Question 16

What 3 things contribute to mass?

Answer 16

• Body mass change
• Fluid intake
• Urine output