Chapter 12 - Hydration Flashcards
1
Q
What is the water composition of people?
A
- Men = 60% of body weight
- Females = 50% of body weight
2
Q
Thirst
A
- conscious desire to drink
- this lags behind the body’s need to drink
3
Q
Dehydration
A
- due to water deprivation or excessive water loss
- symptoms: thirst, weakness, exhaustion, delirium, death
4
Q
Intoxication
A
- from excessive ingestion or kidney deoxidation that reduces urine output
- symptoms: confusion, convulsions, coma, death
5
Q
Measuring fluid input (ml/d)
A
- Liquids = 550-1500
- Food = 700-1000
- Metabolic water = 200-300
- Total = 1450-2800
6
Q
Measuring fluid output (ml/d)
A
- Kidneys = 500-1400
- Skin = 450-900
- Lungs = 350
- Feces = 150
- Total = 1450-2800
7
Q
Insensible losses
A
- cant easily be measured
- loss through sweat or respiration
8
Q
Sensible losses
A
- can be measured
- loss through urine excretion or feces
9
Q
How much fluid based on energy intake?
A
1ml/kcal/day
10
Q
How much fluid based on age and body weight?
A
- young adult = 35-40 cc/kg
- average adult = 30-35 cc/kg
- adult ages 55-65 = 30 cc/kg
- adult ages 65+ = 25cc/kg
