NR 570 final fluid electrolyte exam questions with correct answers

NR 570 final fluid/electrolyte exam
questions with correct answers

Extracellular fluid (ECF)- | |




interstitial fluid, cerebrospinal, lymph,plasma
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Intracellular fluid (ICF) | |




is found- the cells of the body
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Women
TBW = 0.5 x total body weight in kg
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Men: TBW |




0.6 x total body weight in kg
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. TBW(total body weight)
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Extracellular Fluid (1/3)Intravascular Volume (1/3), Interstitial Fluid (2/3)
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Intracellular Fluid (2/3) | |




Sodium and water | |




what are the two main "players" in regulating extracellular fluid volume
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osmolality
Volume status is regulated by, determining fluid status as well as acid-base and
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electrolyte imbalances in the ECFV. | | | |




Sodium concentration |




is the key element that maintains osmotic equilibrium.
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Hyperosmolar State |

, (sodium concentration is high in the ECFV)
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Hypoosmolar State |




sodium concentration is low in the ECFV)-
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Gain fluids |




· excessive IV fluids
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· excessive sodium intake
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· renal parenchymal disease
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· CHF
|


· Cirrhosis
|


these are |




loss fluid |




· hemorrhage
|


· vomiting
|


· diarrhea
|


· drains and ostomy output
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· diuresis
|


these are |




Dehydration
occurs when there is a loss of total body water that can produce an overall state
| | | | | | | | | | | | | | | |


of hypertonicity.
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Volume depletion | |




occurs when there is a loss of extracellular fluid volume.
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IV fluids=crystalloid or colloid solutions
| | | |




are considered plasma volume expanders, which function to increase the
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circulatory volume. |




Crystalloids