HUN3272 - CH7
What tissue is approximately 10 percent water? a. fat b. blood plasma c. muscle d. bone
a. fat
All of the following are goals of fluid consumption during exercise EXCEPT _______. a. overconsumption of water to ensure stores are at maximum capacity b. avoiding gastrointestinal upset c. delaying dehydration to the extent possible d. replacing sodium if losses are large or rapid
a. overconsumption of water to ensure stores are at maximum capacity
Hyponatremia resulting from exercise can cause a serious and sustained loss in _____ concentration to below 135 mmol/L. a. plasma sodium b. potassium c. calcium d. solute
a. plasma sodium
Hypokalemia is a result of ____. a. substantial potassium loss without replenishment b. low dietary intake of potassium c. high sodium excretion d. excessive potassium reabsorbed by the kidneys
a. substantial potassium loss without replenishment
After training and performance, it is recommended that athletes drink approximately ___ of fluid per kg of body weight lost, beginning as soon after exercise as is practical. a. 1 L b. 1.5 L c. 2 L d. 2.5 L
b. 1.5 L
Individuals should consume fluids containing carbohydrates and sodium after exercising continuously for approximately ____. a. 4 hours b. 2 hours c. 1/2 hour d. 1 hour
b. 2 hours
What condition results from increasing core temperature and deteriorating thermoregulatory control? a. hyperhydration b. hyperthermia c. hypertrophy d. hyperinsulinemia
b. hyperthermia
A ___ solution is when the concentration of all solutes is greater outside than inside the cell, so water moves out of the cell, causing the cell to shrink. a. hypotonic b. hypertonic c. isotonic d. tonic
b. hypertonic
Which of the following is an anion involved in fluid balance? a. sodium b. phosphate c. calcium d. magnesium
b. phosphate
One form of insensible water loss is _____. a. feces b. ventilation c. urine d. sweat
b. ventilation
What are two factors associated with a lower percentage of body water? a. being older and having a large amount of muscle mass b. being female and having a large amount of muscle mass c. being older and having a large amount of body fat d. being male and having a low body weight
c. being older and having a large amount of body fat
Before consuming sports drinks during an event, athletes should experiment with them during training because the ________ content of these drinks can increase ________. a. sodium; fluid losses b. sodium; gastric distress c. carbohydrate; gastric distress d. carbohydrate; fluid losses
c. carbohydrate; gastric distress
As an individual's core temperature rises, the ____ glands are activated to reduce the body's ____. a. adrenal; fluid loss b. adrenal; heat load c. sweat; heat load d. sweat; fluid
c. sweat; heat load
Research has shown that daily intake of caffeine under ________ mg does NOT result in dehydration; a 16 ounce cup of commercially brewed coffee contains about ________ mg of caffeine. a. 300; 300 b. 500; 400 c. 400; 100 d. 450; 300
d. 450; 300
Maintaining hydration during endurance events is most likely to be challenging due to _____. a. lack of access to hydration liquids b. a decrease in kidney function during exercise c. an increase in blood pressure during exercise d. sweat rates that exceed gastric emptying and absorption rates
d. sweat rates that exceed gastric emptying and absorption rates