Dehydration These slides address the problems of dehydration

Dehydration These slides address the problems of dehydration and math exercises related to dehydration.

Dehydration can be defined as when the loss of water and salts is more than is replenished. The average person loses about 2. 5 liters of water every day. So to stay properly hydrated you must replenish this water in order to keep from being dehydrated.

Dangers of Dehydration can lead to any of the following problems: • • Cramps Headaches Diarrhea Fever Vomiting Hallucinations Death In fact, dehydration is the leading cause in deaths of infants.

Water in the Body Water makes up approximately 60% of the male body mass, and 50% of the female body mass. Water makes up 75% of muscle mass, but only 25% of fat mass. So the lower a person’s body fat percent is, the higher their water percent will be.

Body Mass Water makes up 60% of a man’s body mass. How much water is in a man who weighs 215 lbs? Assume that the previous man has 24 lbs of fat and the water in his body due to fat and muscle is 100 lbs. Using the fact that fat is 25% weight by mass and muscle is 75% weight by mass, how much muscle mass does the man have?

Dangerous Dehydration There are three types of dehydration • Mild – Less than 5% weight loss • Moderate – 5 -10% weight loss • Severe – 10 -15% weight loss Severe dehydration requires immediate medical attention and can lead to death.

Dehydration Problems Now we are going to do some math problems related to dehydration.

Diagnosing Dehydration Determine whether each of the following people are severely, moderately, or mildly dehydrated. (a) A woman who normally weighs 120 lbs and has lost 5 lbs (b) A woman who normally weighs 140 lbs and has lost 20 lbs (c) A man who normally weighs 190 lbs and has lost 15 lbs

Loss of Water If a woman weighs 125 lbs, how much water would she have to lose to become (a) mildly dehydrated (0 -5%) (b) moderately dehydrated (5 -10%) (c) severely dehydrated (10 -15%) How many gallons would that be? (1 gal = 8. 3370 lbs of water)

How about you? Kids between 10 -12 need about half their body weight in ounces of water to remain adequately hydrated. Use a scale to determine how much you weigh, and how many ounces of water you would need.

Glasses of Water Every glass contains 8 fluid ounces. Calculate how many glasses of water you need each day based on the number of ounces you previously calculated.

Measuring Water Now measure out the water you calculated in the last step. Use different size measuring cups to add up to the amount of water you need each day. Does the amount you calculated seem like too much? Too little?