Term
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Definition
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Term
| Where is 2/3 of body water located |
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Definition
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Term
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Definition
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Term
| What are the components of ECF? |
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Definition
| interstitial fluid/plasma/lymph |
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Term
| Gerontologic Considerations for fluid balance |
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Definition
| Decreased renin and aldosterone; Increased ADH and ANP; Skin is thinner so lose more water from it; Decreased thirst mechanism |
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Term
| Fluid and Electrolyte Distribution |
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Definition
| 1. Movement is constant 2. Membranes are semipermeable |
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Term
| Membranes are semipermeable |
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Definition
| Water and electrolytes move easily across; Larger molecules (proteins) less able |
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Term
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Definition
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Term
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Definition
| Diffusion, filtration, active transport |
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Term
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Definition
| Hydrostatic and oncotic pressure |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Body weight is composed of what percentage of water as an adult |
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Definition
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Term
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Definition
| Increased sodium; WATER DEFICIT; will pull water out of the cell causing cell shrinkage |
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Term
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Definition
| Decreased sodium; WATER EXCESS; will put water into cell causing cellular swelling |
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Term
| Thirst mechanism is regulated by |
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Definition
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Term
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Definition
| 1. Stimulated by stress, nausea, nicotene, morphine 2. Keeps you from releasing your fluids 3. Secreted when increase in plasma osmolality (water deficit) 4. Suppressed if decrease in plasma osmolality |
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Term
| What does alcohol do to ADH |
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Definition
| Suppresses secretion - which causes you to lose a lot of water |
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Term
| What is a major determinant of fluid balance? |
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Definition
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Term
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Definition
| Measured in people with heart problems (measures heart failure); Suppresses ADH and Aldosterone; Promotes excretion of water and sodium |
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Term
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Definition
| Concentration of solutes/solvent is equal |
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Term
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Definition
| Concentration of solutes is lower than the solvent (fluid is dilute) |
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Term
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Definition
| Concentration of solutes is higher than the solvent (fluid is more concentrated - like pee in the morning) |
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