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Adult Health (Medical-Surgical) Nursing: Fluid, electrolyte and acid-base imbalances · Body Fluid Compartments and Volume Imbalances

How water is distributed and regulated in the body, and how nurses recognize and manage fluid deficit and fluid overload.

For learning, not medical advice: for your own health, ask a doctor or another qualified professional.

Adult Health (Medical-Surgical) Nursing · 32 questions

Try 3 questions

1. Roughly what share of a healthy adult's body weight is water?

  1. About 60 percent
  2. About 35 percent
  3. About 85 percent
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Answer: About 60 percent

Total body water is about 60% of body weight in a typical adult, a little less in women and in people with more body fat.

2. In which compartment is most of the body's water found?

  1. In the blood plasma
  2. Inside the cells
  3. In the space between cells
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Answer: Inside the cells

About two thirds of total body water is intracellular; the extracellular third is split between interstitial fluid and plasma.

3. Of the fluid outside the cells, which part is the largest?

  1. Cerebrospinal fluid
  2. Blood plasma
  3. Interstitial fluid
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Answer: Interstitial fluid

Interstitial fluid makes up about three quarters of extracellular fluid; plasma is only about one quarter.

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