HEALTH 230 (Nutrition) ACTUAL EXAMBANK QUESTIONS AND ANSWERS A+ GRADED QUEENS UNIVERSITY
What pH must the body maintain?
✔✔7.35-7.45 pH
What three things regulate body pH?
✔✔1. buffers
2. lungs
3. kidneys
What are the roles of sodium an how is it regulated?
✔✔roles:
- maintains body fluid balance
- nerve impulse/muscle contraction
Regulation:
- travels freely in blood
- filtered out by kidneys
- high blood sodium triggers thirst
What are the sodium recommendations
✔✔- AI: 1500mg
- UL: 2300mg
- 85% of men and between 63%-83% of women were above UL
- low sodium in food label is 140mg or less
what is the link between sodium and hypertension and osteoporosis
✔✔hypertension:
- high salt intake causes increase in blood pressure
osteoporosis:
- high sodium intake causes increased calcium excretion