10 Questions
What is the total body water (TBW) as a percentage of the total body weight?
60%
Which substance is commonly used in the measurement of total body water?
Tritium oxide
What is the percentage of water in the body composition of a 70kg adult male?
60%
What is the main cation found in the intracellular fluid (ICF)?
Potassium (K+)
How does the percentage of total body water (TBW) vary with age?
It decreases with age
How is the volume of distribution calculated in the indicator dilution method?
$amount\ injected-amount\ excreted\ or\ metabolized/concentration\ of\ substance\ in\ the\ sample$
Why is the percentage of total body water (TBW) lower in females than in males?
Females have a higher percentage of fat
How can blood volume be calculated from plasma and packed cell volume (PCV)?
$Blood = Plasma \times 100/100-PCV$
What is the intracellular fluid (ICF)?
Fluid inside the cells
In which group is the percentage of total body water (TBW) highest?
Thin-tall subjects
Learn about body composition, distribution, and measurement of body fluids in this quiz. Understand the percentages of water, protein, fat, mineral, and carbohydrates in a 70kg adult male, as well as the variations in total body water based on age, gender, and body size.
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