Chapter 9

Question 1

DRI for sodium

Answer 1

1.5 grams

Question 2

True/ false: table salt is only 40% sodium

Answer 2

True

Question 3

What are regulatory mechanisms in the body that prevent a drop in low salt in the blood?

Answer 3

If there is a drop in salt concentration in the blood, aldosterone is released, which stimulates the kidneys to retain more sodium. Also, ADH helps with the water intake in the kidneys, which helps with overall sodium and water balance within the body.

Question 4

DRI for chloride CL

Answer 4

2.3 grams

Question 5

DRI for potassium

Answer 5

4.7 grams

Question 6

Hypokalemia

Answer 6

Low serum potassium level - can lead to muscle weakness and even cardiac arrest

Question 7

Hyperkalima

Answer 7

High serum potassium level- can lead to cardiac arrythemias and death

Question 8

What environmental conditions can predispose an athlete to hyperthermia?

Answer 8

Air temp
Humidity
Air movement
Radiation

Question 9

During exercise in a cool environment , body heat is lost mainly through…

Answer 9

Radiation and the convection of the air moving round the body

Question 10

Recommended concentration of carbs in water?

Answer 10

6-8%

Question 11

If urine is dark or no urine is produced, what is the recommended intake of fluid prior to event?

Answer 11

3-5 ml/kg of body weight 2 hours prior to event

Question 12

Essential fat

Answer 12

Necessary for certain body functions; brain, nervous tissue, been marrow, heart tissue and cell membranes